The ADT835 is a portable calibration bath with a compact bath size of 3.54 x 3

With a built-in high performance electronic pump and precision pressure controller, the 761 series portable automated pressure calibrators provide a turn-key solution for calibration of gauges, transmitters, and switches both in the field and in the laboratory. In a portable package, this calibrator can automatically generate pressures to 600 psi (40 bar) or 615 psi

With a built-in high performance electronic pump and precision pressure controller, the 761 series portable automated pressure calibrators provide a turn-key solution for calibration of gauges, transmitters, and switches both in the field and in the laboratory. In a portable package, this calibrator can automatically generate pressures from 90% vacuum to 600 psi (40 bar) with 0

With a built-in high performance electronic pump and precision pressure controller, the 761 series portable automated pressure calibrators provide a turn-key solution for calibration of gauges, transmitters, and switches both in the field and in the laboratory. In a portable package, this calibrator can automatically generate pressures from 90% vacuum to 600 psi (40 bar) with 0

With a built-in high performance electronic pump and precision pressure controller, the 761 series portable automated pressure calibrators provide a turn-key solution for calibration of gauges, transmitters, and switches both in the field and in the laboratory. In a portable package, this calibrator can automatically generate pressures from 90% vacuum to 600 psi (40 bar) with 0

The ADT992/993 Handheld Pneumatic Pressure Pumps deliver up to 700 PSI (50 Bar) or 1,000 psi (70 bar) using a dual-stage pre-pressure piston for efficiency and ease of use. Their lever-type pressurization ensures quick stabilization, while a fine adjust screw enables precise pressure adjustments

The 901B Low Pressure Test Pump is a hand operated pressure pump designed to generate pressures from -6 psi (-0.4 bar) to 6 psi (0

The 912A Pneumatic Pressure Test Pump is a hand operated pressure pump designed to generate pressure from 95% vacuum to 60psi (4bar). A high-quality screw press is designed for fine pressure adjustment, with an adjustment resolution up to 0

The 914A Pneumatic Pressure Test Pump is a hand operated pressure pump designed to generate pressure from 95% vacuum to 375psi (25bar). A high-quality screw press is designed for fine pressure adjustment, with an adjustment resolution up to10 Pa (0

The 916A Pneumatic Pressure Test Pump is a hand operated pressure pump designed to generate pressure from 95% vacuum to 600psi (40bar). A high-quality screw press is designed for fine pressure adjustment, with an adjustment resolution up to 10 Pa (0

The 917 Pneumatic Pressure Test Pump is a hand operated pressure pump designed to generate pressure from 95% vacuum to 1,000psi (70bar). A high-quality screw press is designed for fine pressure adjustment, with an adjustment resolution up to 10 Pa (0

The 918 Pneumatic Pressure Test Pump is a hand operated pressure pump designed to generate pressure from 95% vacuum to 1,500psi (100bar). A high-quality screw press is designed for fine pressure adjustment, with an adjustment resolution up to 10 Pa (0

The 919A High Pressure Test Pump is a hand operated pressure pump designed to generate pressure from 95% vacuum to 2,000psi (140bar). With a long lever, it just takes 30 seconds to reach 2,000 psi (140 bar)

The 920 and 920HV High Pressure Test Pumps are hand operated pressure pumps designed to generate pressure from 95% vacuum to 3,000psi (200bar). With a long lever, it just takes 40 seconds to reach 3,000 psi (200 bar)

The ADT997 Handheld Hydraulic Pressure Pump delivers up to 10,000 psi (700 bar) using a dual-stage pre-pressure piston for efficiency and ease of use. Its lever-type pressurization ensures quick stabilization, while a fine adjust screw enables precise pressure adjustments

The 925 Hydraulic Pressure Test Pump is a hand operated pressure pump designed to generate pressure from 85% vacuum to 6,000psi (400bar). With the patented screw press technology, the high pressure can be easily generated, as well as increased and decreased smoothly

The 927 Hydraulic Pressure Test Pump is a hand operated pressure pump designed to generate pressure from 85% vacuum to 10,000 psi (700bar). With the patented screw press technology, high pressures can be easily generated, as well as increased and decreased smoothly

The Additel 928 Hydraulic Pressure Test Pump is a hand operated pressure pump designed to generate pressure to 15,000 psi (1,000bar). This pump incorporates a dual-piston system which is ideal for filling large volume workload with the hand pump and providing smooth increase and decrease of pressure with the fine adjustment

The 936 Hydraulic High Pressure Test Pump is a hand operated pressure pump designed to generate pressure from 85% vacuum to 15,000 psi (1,000bar). With the patented screw press technology, high pressures can be easily generated, as well as increased and decreased smoothly

The new Additel 946A Hydraulic High Pressure Test Pump is a benchtop pressure pump designed to generate pressure to 15,000 psi (1,000 bar). This pump incorporates a dual-piston system which is ideal for filling large volume workload with the hand pump and providing smooth increase and decrease of pressure with the high pressure, fine adjust screw press

The 949 Hydraulic Ultra-high Pressure Test Pump is a hand operated pressure pump designed to generate pressure up to 40,000 psi (2,800 bar). With the patented screw press technology, high pressures can be easily generated, increased and decreased smoothly

The Additel 959A is designed to generate pressure up to 40,000 psi (2,800 bar) for the application requiring accurate pressure testing and calibration. It can be used in calibrating pressure gauges, transmitters, or other pressure measuring instruments

The new Additel 960 Hydraulic Pressure Test Pump is a benchtop pressure pump designed to generate pressure to 60,000 psi (4,200 bar). This pump incorporates a dual-piston system which is ideal for filling large volume workload with the hand pump and providing smooth increase and decrease of pressure with the high pressure, fine adjust screw press

With advanced microprocessor technology and state-of-the-art silicon pressure sensors, the 681 series digital pressure gauges provide an accurate, reliable, and economic solution for a wide range of pressure applications. They are loaded with functionality and remarkably easy to use

With advanced microprocessor technology and state-of-the-art silicon pressure sensors, the 680 series digital pressure gauges provide an accurate, reliable, and economic solution for a wide range of pressure applications. They are loaded with functionality and remarkably easy to use

With advanced microprocessor technology and state-of-the-art silicon pressure sensors, the 672 series precision pressure calibrators provide a pressure calibration solution for gauges, transmitters, and switches over a wide pressure range. The 672 is a very portable device and can measure pressure precisely with a built-in pressure sensor, as well as read the current or mV produced by a transducer

For years, we’ve provided the most durable, accurate, quality pressure calibration products for field applications. The Additel 770 and 770S controllers incorporate the same durability, accuracy, and quality into a new bench top controller packed with features and functionality that is remarkably easy to use

With advanced microprocessor technology and state-of-the-art silicon pressure sensors, the Additel 160 series Intelligent Digital Pressure Module (IDPM) provides an accurate, reliable, and economic solution for wide range of pressure applications. It is loaded with functionality and remarkably easy to use

The 220 is a highly integrated loop calibrator featuring several patented technologies, the calibrator is an ultra-compact, rugged, and best of all, easy to use hand-held device that will source, simulate and measure loop current, mV/V, loop integrity, and also perform switch testing. Its smart phone-like menu and interface makes it simple and easy to use

A highly integrated Multifunction Temperature Calibrator featuring several patented technologies, the 221A is an ultra-compact, rugged, and easy to use hand-held device for sourcing, simulating and measuring temperature, and electrical signals. Its smartphone-like menu and interface make the operation simpler and easier

A highly integrated multifunction calibrator featuring several patented technologies, the 222A is an ultra-compact, rugged, and easy to use hand-held device for sourcing, simulating and measuring pressure, temperature, and electrical signals. Its smartphone-like menu and interface make the operation simpler and easier

A highly integrated multifunction calibrator featuring several patented technologies, the 223A is an ultra-compact, rugged, and easy to  use hand-held device for sourcing, simulating and measuring pressure, temperature, and electrical signals. Its smartphone-like menu and interface make the operation simpler and easier

We are taking temperature calibration to the next level with the Additel 878 Reference Dry Well Calibrators. If you are looking for the best dry well on the market, then look no further! Additel’s commitment to continuous improvement, quality and time saving features are on full display in the ADT878 series

If you are serious about portable temperature calibration tools, then you know a good dry well calibrator is more than just a stable heat source. The Additel 875 Series Dry Well Calibrators combine excellent performance in stability, radial and axial uniformity

We understand the many challenges associated with thermocouple calibration work. That is precisely why we decided to introduce the ADT875-1210 and ADT878-1210 Thermocouple Calibration Furnaces

At Additel, innovation and continuous improvement are part of our company's culture and the products we introduce. When we set out to deliver the Additel 761A series calibrators, we knew we needed to provide breakthrough improvements and additional value to the existing line of calibrators (Additel 761 series)

For years, we’ve provided the most durable, accurate, quality pressure calibration products for field applications. The Additel 780 controller incorporates the same durability, accuracy, and quality into a new bench top controller packed with features and functionality that is remarkably easy to use

Additel's 673 Advanced Digital Pressure Calibrators will redefine the way you want to measure and calibrate pressure readings and devices! With wireless remote connectivity, microprocessor technology, state of-the-art silicon pressure sensors and onboard storage capacity, these attractive and fully temperature compensated calibrators will provide the performance, durability and reliability you’ve come to expect from genuine Additel products. The all new modern menu structure and control interface brings a new and refreshing experience to pressure calibration work

Additel's 686 Advanced Digital Pressure Gauges will redefine the way you want to measure pressure! With wireless remote connectivity, microprocessor technology, state of-the-art silicon pressure sensors and optional onboard storage capacity, these attractive and fully temperature compensated gauges will provide the performance, durability and reliability you’ve come to expect from genuine Additel products. The all new modern menu structure and control interface bring a new and refreshing experience to pressure calibration work

Looking for the most advanced, best performing and modern digital pressure gauge on the market? Congratulations, you’ve just found it! Additel’s ADT685 digital pressure gauges are in a class of their own with an amazingly easy to use and read touchscreen display. The all new modern menu structure and control interface bring a new and refreshing experience to gauge work

2019 IDEA Award Winner The Additel 286 Multifunction Reference Thermometer Readout is an industry first! We have combined the capabilities of a high-end reference thermometer with a highly capable data acquisition system and 8.5 digit multimeter

The new Additel 209 and 210 loop calibrator series combine ease of use and functionality, making them the ideal tools to troubleshoot your process loop. The ADT209 has an accuracy of 0

The Additel 100 series Hose Test Kits are designed to extend your pressure calibrations to a convenient location and to adapt from one press connection to another. Each Tesk kit has 5 feet of flexible hose rated to 8,000 psi (550 bar) or 15,000 psi (1,000 bar) which connects a male NPT, BSP, or Metric connector to a variety of female quick connectors

Additel 12X series pressure manifolds are designed for expanding pressure test ports during pressure calibration. The Additel 121 pressure manifold is used for pneumatic pressure calibration up to 3600 psi (250bar), while the Additel 123 manifolds is compatible to hydraulic pressure applications up to 15,000 psi (1,000 bar)

The Additel 100-FLT-1K is a pneumatic filter and liquid trap covering from -15 to 1,000 psi (-1.0 to 70 bar)

Additel ACal is a powerful software package designed to automate or semi-automate calibrations and manage your laboratory.  ACal combines the pressure and temperature automation features with lab and asset management functions to help make your job easier and more productive

Additel LogII is a real-time data logging and graphical software for the ADT681/ADT680W series digital Pressure gauges, the ADT672 series digital pressure calibrators, and the ADT760 Automatic Handheld Pressure Calibrator. Data can be recorded in real-time and for the ADT681/ADT680W data logging version, recorded results can be uploaded

With Additel/Land software, you may download test results stored in the internal memory of wired or wireless Additel calibrators to a PC, and export the results to an excel file.

With Additel/Land software, you may download test results stored in the internal memory of Additel calibrators to a PC, and export the results to an excel file. It is a free software package

Additel/Log II Wireless is a real-time data logging and graphical software for the ADT680W series wireless digital pressure gauge. Data can be recorded in real-time and historical data in the gauge can be uploaded

Task management software for the 22XA series multifunction process calibrators and the 761 series automated pressure calibrators.  Additel/Cal was designed specifically for task management of temperature and pressure calibration

Additel Link is a control utility designed to allow you to remote control and view the state of your Additel products.This software will make it easy to control your dry well units

The Additel PCal Pressure Calibration Software is used with the 681 pressure gauges, 672 calibrators, and any of the 9XX pumps.  It allows for Semi-automated calibration of pressure gauges, transmitters, transducers and other pressure devices

Thermocouple calibration work can be challenging. Here at Additel, we understand the difficulties of this type of work

Additel’s new Multi-functional Process Calibrator series takes portability, functionality, and accuracy to a whole new level and packages it with an intuitive and easy to use color touchscreen display. The ADT226 is a powerful yet cost effective process calibrator, which has an ATEX certified intrinsically safe option - ADT226Ex allowing you to perform calibration work in the harshest of environments

Additel’s new Multi-functional Documenting Process Calibrator series takes portability, functionality, and accuracy to a whole new level and packages it with an intuitive and easy to use color touchscreen display. This series includes an advanced documenting pressure calibrator (ADT227) and an advanced documentation process calibrator with a builtin HART communicator (ADT227-HART)

With advanced microprocessor technology and state-of-the-art silicon pressure sensors, Additel’s 161 and 161Ex series Digital Pressure Modules provide an accurate, reliable, and economic solution for wide range of pressure applications. Our intrinsically safe (Ex) models are up to the task of providing the best possible results, even in hazardous environments

Additel’s 282 Reference Thermometer Readout delivers the best possible accuracies and features in the palm of your hand! With accuracy capabilities on par with laboratory grade thermometers, the ADT282 is capable of handling even your most critical measurements. This ultra-high precision readout features dual analog channels designed to facilitate comparison measurements and meet all of your temperature measurement needs

The AM1210 Reference Standard Type S Thermocouple is made from reference grade platinum and platinum-rhodium alloy. It covers a temperature range from 0°C to 1300°C with a short term stability of <0

The AM1612A full immersion PRT is uniquely designed to provide users an excellent temperature probe that can expose the transition junction and the lead wires to an environment that covers the full PRT temperature range. The seal of the probe prevents the ingress of moisture so that the probe can work in humid conditions or even under full immersion in common heat transfer fluid such as ethanol, silicone oil and mineral oil

The AM1660 and AM1640 series Precision Industrial PRTs (IPRTs) are rugged probes with excellent accuracy and stability. These IPRTs cover a wide range of temperatures from -200°C to 670°C, with an amazing accuracy of ±0

The AM1710 series of Secondary Reference PRTs offers affordable reference probes for precision temperature measurement and calibration both in the lab and in the field. These PRTs feature an accuracy of <0

The AM1730 series of Secondary Reference PRTs offers affordable reference probes for precision temperature measurement and calibration both in the lab and in the field. These PRTs feature an accuracy of <0

The AM1751 series of Secondary Reference PRTs offers affordable reference probes for precision temperature measurement and calibration both in the lab and in the field. These PRTs feature an accuracy of <0

The AM1760 series Secondary SPRTs provides our customers with reliable secondary standards that can be used daily in their labs. These SPRTs feature an accuracy of <0

Additel's 273Ex is an intrinsically safe handheld multifunctional pressure calibrator with a color touchscreen, smartphone like interface, built-in quick test tasks and optional HART communications capability. This innovative Additel product drastically improves explosion-proof field testing and calibration

With advanced microprocessor technology and state-of-the-art silicon pressure sensors, Additel’s 158Ex series Digital Pressure Modules provide an accurate, reliable, and economic solution for wide range of pressure applications. Our intrinsically safe (Ex) models are up to the task of providing the best possible results, even in hazardous environments

Additel's 260Ex is an intrinsically safe handheld multichannel reference recorder with 8 different channel configurations.  Armed with Additel’s most versatile and capable handheld, technicians are now able to measure and collect data for pressure, temperature (RTD probes available), barometric pressure and electrical measurement all in one highly portable device

The Additel 762 Automated Pressure Calibrator is unlike any other pressure calibrator on the market.  This revolutionary product is a complete turnkey solution for automation of pressure calibration work up to 15,000 PSI

A portable automated pressure calibrator in the palm of your hand—this could be our most exciting product yet! The Additel 760 series Automatic Handheld Pressure Calibrator takes portable pressure calibration to new levels. Weighing less than 4 lbs (1

Designed for use in both the field and the laboratory, the portability and accuracy of this state-of-the-art product will quickly become the favorite go-to calibrator for lab personnel and field technicians alike. With fully automated support for calibration of pressure transmitters, switches, dial and digital gauges and sensors, including HART/PROFIBUS devices in conjunction with a fully integrated task feature, data collection and Wi-Fi connectivity, we had our customer’s needs in mind when designing our most capable pressure calibrator to date

These modular pressure controllers combine cutting-edge control/measurement technology, modular design, and user-friendly features. The Additel 773 controller series is optimized for low pressure work by utilizing Additel’s proven low-pressure pump technology in combination with control capabilities that revolutionized the industry as seen in the well-known handheld model ADT760

These modular pressure controllers combine cutting-edge control/measurement technology, modular design, and user-friendly features. The Additel 783 controller series is optimized for high speed to pressure without compromising accuracy and stability

The Additel 793 pressure controller combines the latest control / measure technology, modular design and easy to use / maintain features into a single user friendly deice.  The Additel 793 provides pressure control up to 15,000 psi (1,000 Bar)

Additel’s 151 pressure modules have been designed with flexibility and efficiency in mind and can easily be swapped out as needed to meet changing needs and workloads. Higher pressure ADT151 modules cover two separate pressure ranges and come with individual calibrations for each range

The ADT601Ex intrinsically safe digital pressure gauge is designed to improve upon traditional dial pressure gauges by providing a reliable and accurate digital solution for a minimal investment. The included Bluetooth technology allows users to connect directly to mobile phones for remote monitoring

Additel’s 680A Series Digital Pressure Gauges are designed with a wide range of pressure measurement and calibration applications in mind. With features such as datalogging and Bluetooth technology included, you will find these gauges to be high in value at a reasonable cost

Overview Additel’s 680P Series Digital Pressure Gauges are designed to be used in panel mount applications. With features such as datalogging and Bluetooth technology included, you will find these gauges to be high in value at a reasonable cost

Additel’s 681A Series Digital Pressure Gauges are designed to be your favorite tool for a wide range of pressure measurement and calibration applications. With features such as datalogging and Bluetooth technology included, you will find these gauges to be high in value at a reasonable cost

Additel participates in the 48th annual Measurement Science Conference

Additel holds it's 1st Worldwide sales meeting in Beijing

Additel holds an International Service Training

Additel Corporation introduces their new ADT760 Automatic Handheld Pressure Calibrator which incorporates pressure generation and control in a handheld design less than 4 lbs (1.8kg).

Additel Corporation introduces two new hydraulic calibration pumps: the ADT946 which generates pressure to 15,000 psi (1,000 bar) and the ADT959 which generates pressure to 40,000 psi (2,800 bar).

Additel has extended the range of its Intelligent Digital Pressure Modules to 40K psi (2800 bar). Prior to this range extension, Additel offered solutions up to 10K psi (700 bar) with the 160A series. The new ranges include 15K psi (1000 bar), 20K psi (1400 bar), 25K psi (1600 bar), 30K psi (2000 bar), 36K psi (2500 bar) and 40K psi (2800 bar).

Additel Corporation introduces two new feature enhancements for their 681 Series Digital Pressure Gauges:  IP67 rating for the ADT681IS and new % of reading accuracy class applicable for all gauges. The ADT681IS is Additel’s intrinsically safe pressure gauge and now most all models come with and IP67 rating meaning the gauge is dust proof and submersible in 1 meter of water.

Additel Corporation introduces their new ADT780S benchtop pressure controller with precision accuracy to 0.005% of reading + 0.005% FS and standard accuracy to 0.02% FS.

Additel Corporation introduces their new series of loop calibrators designed to troubleshoot the process loop. The Additel Loop Calibrators consist of two models: the ADT209 has an accuracy of 0.03% of reading, and the ADT210 has an accuracy of 0.01% of reading.

Additel Corporation introduces the 100-FLT series of pressure filters designed for ease of use and low maintenance. The Additel 100-FLT-600 is a pneumatic filter and liquid trap covering from -15 to 600 psi (0 to 40 bar).

Additel Corporation introduces the 100-FLT series of pressure filters designed for ease of use and low maintenance. The Additel 100-FLT-600 is a pneumatic filter and liquid trap covering from -15 to 600 psi (0 to 40 bar).

Additel Corporation introduces their new ADT780 series benchtop pressure controllers with precision accuracy to 0.005% of reading + 0.005% FS. The ADT780 configurations have the unique capability of generating pressure to 3,000 psi (200 bar) without the aid of a gas supply.

Additel Corporation introduces the 0.05% FS accuracy class to their ADT681 Digital Pressure Gauges, ADT672 Digital Pressure Calibrators, and ADT160 Intelligent Digital Pressure Modules. This special accuracy class is available for the 100 psia (7 bar.a), 300 psia (20 bar.a), 500 psia (35 bar.a), 1,000 psia (70 bar.a), 3,000 psia (200 bar.a), and 5,000 psia (350 bar.a) ranges.

Additel Corporation introduces the 20K psi (1,400 bar) pressure range to their Digital Pressure Gauge series and Digital Pressure Calibrator series. Each 20K psi gauge is offered in a variety of accuracy classes ranging from 0.05% FS to 0.25% FS depending on the model selected.

Additel has extended the range of its Digital Pressure Gauge and Digital Pressure Calibrator series products to 40K psi (2800 bar).

Additel has added a data logging option to all of the gauges in the 681 Digital Pressure Gauge Series. This optional feature allows for up to 21,843 records to be stored internally in the 681.

Additel Corporation is pleased to introduce the newest model to their Pneumatic Pressure Test Pump Series—the 920 test pump. This new test pump which is designed for pressure gauge calibration can generate from 95% vacuum to 3,000 psi (200 bar) in a self-contained package.

Additel's 12X series pressure manifolds provide four test ports in an easy-to-use, quality-built manifold design for pressure calibration applications.

Additel Corporation has added six new pressure ranges to their 761 series Automated Pressure Calibrators. The additions to the series now include a low pressure option to control down to 0.0004 inH2O,  a high pressure calibrator to 600 psi, a model designed for calibration at barometric pressures, and three models with absolute pressure sensors which allow for switching between absolute and gauge pressures.

Additel is pleased to announce two new test pumps, the 917 and 918, as part of their Pneumatic Pressure Test Pump series. The Additel 917 can generate pressures from 95% vacuum to 1,000 psi (70 bar). The 918 can generate pressures from 95% vacuum to as high as 1,500 psi (100 bar).

Additel is pleased to announce its ADT681IS series Intrinsically Safe Digital Pressure Gauges have been tested and certified by the Canadian Standards Association (CSA). Products with the CSA certification provide increased assurance of product quality and safety.

Additel Corporation introduces their new ADT875 Dry Well Calibrator series which consist of three temperature ranges from –40°C to 660°C. There are three ranges to choose from: low temperature –40C° to 155°C (ADT875-155), mid-temperature 33°C to 350°C (ADT875-350), and high temperature 33°C  to 660°C (ADT875-660).

Additel has extended the range of its Digital Pressure Gauge and Digital Pressure Calibrator series products to 60K psi (4200 bar). Prior to this range extension, Additel offered solutions up to 40K psi (2800 bar).

Additel Corporation has improved the accuracy specification of their precision accuracy controller series and Intelligent Digital Pressure Modules, ranging from vacuum pressure to 1,000 psi (70 bar). The improved accuracy specification is 0.01% of reading from 30% to 100% FS.

Additel Corporation introduces their new ADT875 Dry Well Calibrator series which consist of three temperature ranges from –40°C to 660°C. There are three ranges to choose from: low temperature –40C° to 155°C (ADT875-155), mid-temperature 33°C to 350°C (ADT875-350), and high temperature 33°C to 660°C (ADT875-660).

Additel Corporation has received accreditation for its laboratory located in Brea, CA USA. The National Voluntary Laboratory Accreditation Program (NVLAP) recently provided an audit to confirm that Additel’s managerial and technical procedures and processes were in accordance with the international standards of ISO/IEC 17025:2017.

Additel Corporation introduces their new ADT286 Multifunction Reference Thermometer Readout which combines a high-end reference thermometer with an expandable data acquisition system and an 8.5-digit multi meter.

Additel Corporation introduces their new ADT761A Automated Pressure Calibrator. Based on improvements to the legacy ADT761 calibrator, the new ADT761A expands the pressure range up to 1000 psi (70 bar) and includes dual removable sensors, easy to use touch screen and improved communications including Wi-Fi, Bluetooth, USB & Ethernet.

Additel Corporation introduces their new ADT875-1210 and ADT878-1210 Thermocouple Calibration Furnaces which cover a temperature range of 100°C to 1210°C.

Additel Corporation, a manufacturer of process calibration tools, has announced that it has achieved ISO 9001:2015 Certification applicable to sales, marketing, assembly and testing of their calibration tools.

Additel Corporation, a manufacturer of process calibration tools, enhances its ADT761A and ADT875 series calibrator product offerings with a new built-in HART® communicator feature.

Additel Corporation introduces their new ADT878 Reference Dry Well Calibrator series which consist of three products that combine to cover a temperature range from –40°C to 700°C.

Additel Corporation introduces their new ADT850 Laboratory Thermocouple Furnace which covers a temperature range from 300°C to 1200°C.

Additel débuts it new 30 foot eye catching booth at the 2018 NCSLi Workshop & Symposium

Additel Corporation introduces their new Digital Pressure Gauges and Calibrators which include a modern touchscreen interface for a completely new way of interfacing menus and features.

Additel 680 Series Digital Pressure Gauges provide data logging and wireless capabilities for applications up to 36,000 PSI (2500 bar).

Additel's 273Ex is an Intrinsically safe handheld multifunctional pressure calibrator with a color touchscreen, smartphone like interface, built-in quick test tasks and optional HART communications capability.

Additel's 260Ex is an Intrinsically safe Handheld Multichannel Reference Recorder with 8 different channel configurations. Using Additel’s most versatile and capable handheld device, technicians are now able to measure and collect data for pressure, temperature(RTD probes available), barometric pressure and electrical measurement all in one highly portable device.

Additel Corporation introduces their new ADT762 Automated Hydraulic Pressure Calibrator. As Additel continues to strive to meet the needs of their customers through innovation and automation, the new ADT762 expands their automatic pressure calibrator series with portable and automated pressure generation up to 10,000 psi (700 bar).

Additel introduces it's new 282 Dual Channel Reference Thermometer Readout, which provides a temperature measurement accuracy as good as 0.005°C for readout, and a typical system uncertain of approximately 0.013°C @ 0°C when coupled with a capable PRT. It also includes features such as dual channels, RTD & thermocouple measurement capabilities, cold junction compensation for more accurate TC measurements, a large smartphone like display, Bluetooth and USB communications, a built-in easy to access sensor library, datalogging capabilities, an IP67 rating and a rechargeable lithium battery.

Additel Corporation officially announces a rental program for a wide variety of genuine Additel calibration products designed to help customers gain more access to calibration products.

Additel releases firmware update to enable Bluetooth connectivity in the ADT760 Handheld Automatic Pressure Calibrator. This will enable streamlined calibration operations for customers around the world.

Additel’s new Multi-functional Process Calibrator series takes portability, functionality, and accuracy to a whole new level and packages it with an intuitive and easy to use color touchscreen display.

Additel Corporation introduces a new line of pressure controllers. As Additel continues to strive to meet the needs of their customers through innovation and automation, these new controllers expand Additel’s automatic pressure controller offering with high-speed and performance in a modular configuration. Customers can choose between various accuracies and pressure ranges at the time of ordering, but as needs change, the modular design provides customers with options through the easy to swap pressure models.

Additel Corporation introduces several new lines of pressure gauges. These cutting-edge pressure gauges provide users with the latest in digital technology packaged in several different categories to help provide solutions that are up to the challenge at a great value.  These new additions to Additel’s gauge lineup utilize years of customer experience and feedback to improve on their original models in every way, with designs and features to both meet and exceed the ever-evolving demands of modern industries.

Additel Corporation introduces a new and unique line of pressure gauges specifically designed to replace traditional analog dial gauges in an affordable digital format. These cutting-edge pressure gauges provide users with the latest in digital pressure measurement technology packaged in a durable stainless-steel housing at an extraordinary value. he ADT601Ex has been designed with ease of use, durability, and simplified maintenance in mind.

Additel Corporation is excited to announce the launch of the new ADT761A Automated Pressure Calibrator, now featuring the capability to generate and control pressure up to 1,500 psi (100 bar). This enhancement broadens the flexibility of the ADT761 series, catering to an even wider range of applications for our customers.

Additel Corporation is excited to announce the launch of the new ADT783 Automated Pressure Controller, now featuring the capability to control pressure up to 6,000 psi (420 bar). This enhancement broadens the flexibility of the ADT783 series, catering to an even wider range of applications for our customers.

Additel Corporation is proud to introduce the enhanced ADT762 Automated Hydraulic Pressure Calibrator, now with the capability to generate and control pressure up to 15,000 psi (1000 bar). This extension in range marks a significant advancement in the ADT762 series, providing even more versatility to meet the demanding needs of our customers.

Additel Corporation, a global leader in pressure calibration solutions, is excited to announce the launch of its latest series of handheld pressure pumps: the ADT997, ADT993, and ADT992. Designed to provide reliable and versatile solutions for both vacuum and high-pressure testing, these advanced pumps redefine efficiency and precision in the field.

Additel Corporation, a global leader in pressure calibration, is excited to announce enhanced accuracy for its ADT681A and ADT685 digital pressure gauges, as well as the ADT161 pressure modules. Select models now achieve precision as tight as 0.01% of full scale (FS) and, in some cases, 0.01% of reading (RD), offering users greater confidence in their measurements.

Additel Corporation, a global leader in precision calibration equipment, is proud to announce the release of its latest innovation: the ADT715 Precision Pressure Indicator. Designed to deliver outstanding accuracy, flexibility, and utility, the ADT715 is now available for order starting May 29, 2025.

Additel Corporation is proud to announce the release of the all-new ADT835 Portable Calibration Bath, a revolutionary solution that sets a new benchmark in portable temperature calibration technology. The ADT835 is engineered to meet the highest demands of field and laboratory professionals alike.

Differential pressure sensors are common in the process industry and cover a variety of applications. To understand what a differential pressure sensor is, it becomes important to put it in contrast to other pressure measurement types. The most common types of pressure measurement are absolute, gauge and differential.

Have you ever wondered how much impact environmental temperature has on your pressure sensors? Nearly every pressure sensor has some sort of environmental temperature specification on its data sheet. This technical note explains the environmental temperature effects on pressure sensors, quantifying the impact, and ways to minimize the impact.

Specifications for digital pressure gauges can sometimes seem confusing or overwhelming, especially, if you are unfamiliar with the terminology. Some pressure sensors will specify accuracy as a percent of full scale (FS) while others provide the specification as a percent of reading. So why are there different ways of specifying the accuracy of pressure sensors and is percent of reading more accurate than percent of full scale or vise versa? This brief technical note will discuss the two differences and answer these questions.

Pressure switches are commonly used in the process industry for a wide range of applications. A pressure switch is a form of sensor that closes or opens an electrical contact when a certain pressure has been obtained either through a pressure rise or a pressure drop. Pressure switches are used to monitor, control, or provide a caution or warning for a pressure related process. The repeatability, accuracy, and functionality of a pressure switch often tie directly into the safety or efficiency of a process and thus it becomes important that pressure switches are verified and calibrated to ensure their proper function in the process.

Are you tired of dragging a nitrogen bottle and dead weight tester out to the field to perform pneumatic high pressure calibrations? Does it trouble you to use a hydraulic pump or dead weight tester for your gas gauges every time you have to go above 600 psi? This application note details the limitations to traditional methods and provides a solution to calibration of gas gauges up to 3,000 psi (200 bar) with a field-ready calibration tool.

If you are doing high pressure, hydraulic calibrations there are a few things that you'll need to consider which will make your life a little easier and help you produce stable measurements. This application note focuses on considerations for pressure calibrations using a high pressure hydraulic pump to generate the pressure.

This application note describes the instrumentation and method used to achieve high accuracy differential pressure measurements at high static pressures.

Hydrostatic Testing (also known as stack testing or a hydro test) is a method of pressure testing various containment vessels. Hydrostatic testing is used across a variety of applications. When compared to other methods of testing the strength of a container, hydrostatic testing is one of the safest tests you can utilize to find your results. Essentially, hydrostatic testing can test the integrity of a containment vessel, and also check for leaks in your system. Hydro testing utilizes water as the test medium, which as we know is NOT compressible. If there is a leak in a plumbing system, or a failed integrity test of piping, the result is water bursting out of that area with very little pressure applied.

Learn how to calibrate a HART capable electronic valve positioner with Additel equipment. This paper provides a step-by-step guide to the calibration process to fulfill the needs of industrial processes, which have become more sophisticated and demand greater precision.

Pressure switches play a critical role in various industrial applications, ensuring the safety and efficiency of processes by monitoring and controlling pressure levels. Calibrating these devices is essential to maintain accuracy and reliability. This white paper delves into the intricacies of calibrating pressure switches, emphasizing the significance of dead band optimization for enhanced performance.

Temperature calibration is a critical component of precision and quality control in a variety of industries, ranging from healthcare and aerospace to food production and energy management. Among the foundational tools for accurate temperature calibration are Triple Point of Water (TPW) cells: sealed glass or quartz vessels containing purified water which provide a highly stable reference point for 0.01°C. Mini TPW cells, a compact alternative to traditional TPW cells, offer unique advantages, making them an increasingly popular choice for field and lab applications. This white paper examines the advantages and practical uses of mini TPW cells, explores strategies for maintaining their accuracy, and highlights their role in supporting precise, traceable measurements across a diverse range of industries.

Additel Corporation is the leading provider of process calibration equipment including products and software. Browse our calibration equipment for sale today!

Looking for a 17025 Accredited Calibration for Additel Equipment? We provide competitive pricing and a fast turn around time. Our calibrations include As Found/As Left Data, Pass/Fail Criteria, and a description of calibration methods used.

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Additel Corporation is well certified to fulfill your calibration and product needs. We have an ISO 9001 Quality Management System and our laboratory is ISO17025 Accredited. We also have a NVLAP Certificate of Accreditation.

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Additel Corporation is the leading provider of process calibration equipment including products and software. Browse our calibration equipment for sale today!

Additel Corporation is the leading provider of process calibration equipment including products and software. Browse our calibration equipment for sale today!

Additel Corporation has provided several application notes and whitepapers for the calibration industry. Take a look at them here.

Additel Corporation is the leading provider of process calibration equipment including products and software. Browse our calibration equipment for sale today!

Additel designs and manufactures digital pressure gauges, digital pressure test gauges, pressure calibrators, documenting process calibrators, multifunction process calibrators, multifunction Temperature Calibrators and loop calibrator, and pressure test pumps, hand pumps, calibration pumps.

Additel Corporation is the leading provider of process calibration equipment including products and software. Browse our calibration equipment for sale today!

Additel Corporation is the leading provider of process calibration equipment including products and software. Browse our calibration equipment for sale today!

Additel is ready to help you with you calibrations and repair service needs. We pride ourselves on our NVLAP accredited calibration laboratory and our dedicated customer service.

Want to see us at a Tradeshow? Here's a list of events we will be attending. Additel Corporation is the leading provider of process calibration equipment including products and software. Browse our calibration equipment for sale today!

Need help converting one unit of pressure to another? Use this useful tool to help you perform the unit conversions.

Additel Corporation is the leading provider of process calibration equipment including products and software. Take a look at these tutorials and guides on how to use our products.

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