Additel Multifunction Process Calibrators
Pressure, Temperature, and Electrical Calibration in One Instrument
Additel multifunction process calibrators combine electrical, temperature, and pressure measurement capabilities in portable instruments. Models are available for standard industrial environments as well as intrinsically safe applications.
Products
Additel 260Ex Intrinsically Safe Multichannel Reference Recorder
Up to 8 measurement channels
Intrinsically safe
Field switchable pressure module
Pressure accuracy to 0.02% FS
Temperature RTD accuracy to 0.01% RDG + 0.005% FS
Data logging with real-time graphical trending
Supports hydrostatic testing
Color touchscreen display
Built-in barometer
Optional RTD probes available
Bluetooth and USB communication
Communicates with the Additel Link mobile app
ISO 17025 accredited calibration with data included
Overview
The Additel 260Ex puts pressure, temperature, barometric, and electrical measurement into one intrinsically safe handheld (ATEX and IECEx certified, Ex ia IIC T4 Ga) with eight channel configurations: a field-switchable internal pressure module, a user-calibratable barometer, two external module inputs, a synthesized differential pressure channel, two RTD channels supporting 2, 3, or 4 wire sensors, and an electrical channel measuring current, voltage, frequency, pulse, or switch with built-in loop power.
The onboard recorder logs multiple parameters at once with trend curves and statistical feedback, storing up to 10 million readings at intervals from 0.1 s to 9,999 s. That logging depth plus the intrinsic safety rating make it a strong fit for pipeline work: hydrostatic testing, air leak testing, pump station inlet and outlet checks, safety valve testing, wellhead pressure testing, and routine calibration of pressure devices in hazardous gas environments.
Part Number: ADT260EX-NO.
Accessories
9811Ex-X 110V/220V external power adapter
9704Ex Chargeable Li-ion battery
9021 Test leads
9040 Hanging strap with magnet
9052Ex Ex USB Cable type A to type C
ISO 17025 accredited calibration certificate
Additel 260Ex Intrinsically Safe Multichannel Reference Recorder
Up to 8 measurement channels
Intrinsically safe
Field switchable pressure module
Pressure accuracy to 0.02% FS
Temperature RTD accuracy to 0.01% RDG + 0.005% FS
Data logging with real-time graphical trending
Supports hydrostatic testing
Color touchscreen display
Built-in barometer
Optional RTD probes available
Bluetooth and USB communication
Communicates with the Additel Link mobile app
ISO 17025 accredited calibration with data included
Overview
The Additel 260Ex puts pressure, temperature, barometric, and electrical measurement into one intrinsically safe handheld (ATEX and IECEx certified, Ex ia IIC T4 Ga) with eight channel configurations: a field-switchable internal pressure module, a user-calibratable barometer, two external module inputs, a synthesized differential pressure channel, two RTD channels supporting 2, 3, or 4 wire sensors, and an electrical channel measuring current, voltage, frequency, pulse, or switch with built-in loop power.
The onboard recorder logs multiple parameters at once with trend curves and statistical feedback, storing up to 10 million readings at intervals from 0.1 s to 9,999 s. That logging depth plus the intrinsic safety rating make it a strong fit for pipeline work: hydrostatic testing, air leak testing, pump station inlet and outlet checks, safety valve testing, wellhead pressure testing, and routine calibration of pressure devices in hazardous gas environments.
Available configurations. 52 pressure ranges. Process Connection: 1/4 BSP, 1/2 BSP, M20x1.5, 1/4 NPT, 1/2 NPT, 1/4 HP Female, 1/4 HP Male.
Base model ADT260EX. Each configuration has its own Additel part number, shown as the SKU on your order.
Accessories
9811Ex-X 110V/220V external power adapter
9704Ex Chargeable Li-ion battery
9021 Test leads
9040 Hanging strap with magnet
9052Ex Ex USB Cable type A to type C
ISO 17025 accredited calibration certificate
Additel 260Ex Intrinsically Safe Multichannel Reference Recorder
Up to 8 measurement channels
Intrinsically safe
Field switchable pressure module
Pressure accuracy to 0.02% FS
Temperature RTD accuracy to 0.01% RDG + 0.005% FS
Data logging with real-time graphical trending
Supports hydrostatic testing
Color touchscreen display
Built-in barometer
Optional RTD probes available
Bluetooth and USB communication
Communicates with the Additel Link mobile app
ISO 17025 accredited calibration with data included
Overview
The Additel 260Ex puts pressure, temperature, barometric, and electrical measurement into one intrinsically safe handheld (ATEX and IECEx certified, Ex ia IIC T4 Ga) with eight channel configurations: a field-switchable internal pressure module, a user-calibratable barometer, two external module inputs, a synthesized differential pressure channel, two RTD channels supporting 2, 3, or 4 wire sensors, and an electrical channel measuring current, voltage, frequency, pulse, or switch with built-in loop power.
The onboard recorder logs multiple parameters at once with trend curves and statistical feedback, storing up to 10 million readings at intervals from 0.1 s to 9,999 s. That logging depth plus the intrinsic safety rating make it a strong fit for pipeline work: hydrostatic testing, air leak testing, pump station inlet and outlet checks, safety valve testing, wellhead pressure testing, and routine calibration of pressure devices in hazardous gas environments.
Available configurations. 32 pressure ranges. Process Connection: 1/4 BSP, 1/2 BSP, M20x1.5, 1/4 NPT, 1/2 NPT.
Base model ADT260EX. Each configuration has its own Additel part number, shown as the SKU on your order.
Accessories
9811Ex-X 110V/220V external power adapter
9704Ex Chargeable Li-ion battery
9021 Test leads
9040 Hanging strap with magnet
9052Ex Ex USB Cable type A to type C
ISO 17025 accredited calibration certificate
Additel 260Ex Intrinsically Safe Multichannel Reference Recorder
Up to 8 measurement channels
Intrinsically safe
Field switchable pressure module
Pressure accuracy to 0.02% FS
Temperature RTD accuracy to 0.01% RDG + 0.005% FS
Data logging with real-time graphical trending
Supports hydrostatic testing
Color touchscreen display
Built-in barometer
Optional RTD probes available
Bluetooth and USB communication
Communicates with the Additel Link mobile app
ISO 17025 accredited calibration with data included
Overview
The Additel 260Ex puts pressure, temperature, barometric, and electrical measurement into one intrinsically safe handheld (ATEX and IECEx certified, Ex ia IIC T4 Ga) with eight channel configurations: a field-switchable internal pressure module, a user-calibratable barometer, two external module inputs, a synthesized differential pressure channel, two RTD channels supporting 2, 3, or 4 wire sensors, and an electrical channel measuring current, voltage, frequency, pulse, or switch with built-in loop power.
The onboard recorder logs multiple parameters at once with trend curves and statistical feedback, storing up to 10 million readings at intervals from 0.1 s to 9,999 s. That logging depth plus the intrinsic safety rating make it a strong fit for pipeline work: hydrostatic testing, air leak testing, pump station inlet and outlet checks, safety valve testing, wellhead pressure testing, and routine calibration of pressure devices in hazardous gas environments.
Available configurations. Range: BP. Process Connection: 1/4 BSP, 1/2 BSP, M20x1.5, 1/4 NPT, 1/2 NPT.
Base model ADT260EX. Each configuration has its own Additel part number, shown as the SKU on your order.
Accessories
9811Ex-X 110V/220V external power adapter
9704Ex Chargeable Li-ion battery
9021 Test leads
9040 Hanging strap with magnet
9052Ex Ex USB Cable type A to type C
ISO 17025 accredited calibration certificate
Additel 226 Multifunction Process Calibrator
Sources, simulates, and measures pressure, temperature, and electrical signals
Built-in barometer
Intrinsically safe model available (ADT226Ex)
Large smartphone-style color touchscreen
USB Type-C and Bluetooth communication, IP67 rated
High voltage measurement to 300V AC with true RMS meter capability
Dual channel pressure module ports
High static differential pressure measurement to 0.002% FS
ISO 17025 accredited calibration with data included
Overview
The Additel 226 packs sourcing, simulation, and measurement of pressure, temperature, and electrical signals into one portable process calibrator with an intuitive color touchscreen. It is the cost-effective member of Additel's multifunction calibrator series, and the ATEX certified ADT226Ex version extends the same capability into hazardous environments. Dual pressure module ports accept Additel's external modules, and the built-in barometer supports gauge and absolute measurement.
Part Number: ADT226P.
Accessories
110V/220V external power adapter
110V/220V external power adapter
Chargeable Li-ion battery
Chargeable Li-ion battery
Test leads 1 set
Right angle test leads
Pressure module connection cable
USB Cable type A to type C
USB Cable type A to type C
Hanging strap with magnet
Multimeter Test Hook, Flexible Electronic
Probe
Small Multimeter Test Hooks 1 set
ISO 17025 accredited calibration certificate
The 226P is the panel mount configuration of this calibrator, designed for fixed installation.
Additel 226 Multifunction Process Calibrator
Sources, simulates, and measures pressure, temperature, and electrical signals
Built-in barometer
Intrinsically safe model available (ADT226Ex)
Large smartphone-style color touchscreen
USB Type-C and Bluetooth communication, IP67 rated
High voltage measurement to 300V AC with true RMS meter capability
Dual channel pressure module ports
High static differential pressure measurement to 0.002% FS
ISO 17025 accredited calibration with data included
Overview
The Additel 226 packs sourcing, simulation, and measurement of pressure, temperature, and electrical signals into one portable process calibrator with an intuitive color touchscreen. It is the cost-effective member of Additel's multifunction calibrator series, and the ATEX certified ADT226Ex version extends the same capability into hazardous environments. Dual pressure module ports accept Additel's external modules, and the built-in barometer supports gauge and absolute measurement.
Part Number: ADT226EX.
Accessories
110V/220V external power adapter
110V/220V external power adapter
Chargeable Li-ion battery
Chargeable Li-ion battery
Test leads 1 set
Right angle test leads
Pressure module connection cable
USB Cable type A to type C
USB Cable type A to type C
Hanging strap with magnet
Multimeter Test Hook, Flexible Electronic
Probe
Small Multimeter Test Hooks 1 set
ISO 17025 accredited calibration certificate
Additel 226 Multifunction Process Calibrator
Sources, simulates, and measures pressure, temperature, and electrical signals
Built-in barometer
Intrinsically safe model available (ADT226Ex)
Large smartphone-style color touchscreen
USB Type-C and Bluetooth communication, IP67 rated
High voltage measurement to 300V AC with true RMS meter capability
Dual channel pressure module ports
High static differential pressure measurement to 0.002% FS
ISO 17025 accredited calibration with data included
Overview
The Additel 226 packs sourcing, simulation, and measurement of pressure, temperature, and electrical signals into one portable process calibrator with an intuitive color touchscreen. It is the cost-effective member of Additel's multifunction calibrator series, and the ATEX certified ADT226Ex version extends the same capability into hazardous environments. Dual pressure module ports accept Additel's external modules, and the built-in barometer supports gauge and absolute measurement.
Part Number: ADT226.
Accessories
110V/220V external power adapter
110V/220V external power adapter
Chargeable Li-ion battery
Chargeable Li-ion battery
Test leads 1 set
Right angle test leads
Pressure module connection cable
USB Cable type A to type C
USB Cable type A to type C
Hanging strap with magnet
Multimeter Test Hook, Flexible Electronic
Probe
Small Multimeter Test Hooks 1 set
ISO 17025 accredited calibration certificate
Additel 210 Loop Calibrator
0.01% of reading accuracy
Measure, source, or simulate loop current
Measure DC volts
Simultaneous mA and percent of span display
Switch functionality
Selectable ramp and step functions
HART 250 ohm resistor in series with 24V loop
ISO 17025 accredited calibration with data included
Overview
The Additel 210 is built for troubleshooting process loops. It measures current, voltage, and switches, and can source or simulate mA signals and transmitters. Zero and span values, auto ramp, and auto step are each a button press away, and the large display shows the reading alongside percent of span so loop checks go quickly. The built-in 250 ohm HART resistor sits in series with the 24V loop supply, so a HART communicator can connect without extra hardware. It is the higher accuracy member of the series; the companion ADT209 offers 0.03% of reading at a lower price point.
Part Number: ADT210.
Accessories
Test lead set
Alligator clips
9V Alkaline battery
Additel 209 Loop Calibrator
0.03% of reading accuracy
Measure, source, or simulate loop current
Measure DC volts
Simultaneous mA and percent of span display
Switch functionality
Selectable ramp and step functions
HART 250 ohm resistor in series with 24V loop
ISO 17025 accredited calibration with data included
Overview
The Additel 209 is built for troubleshooting process loops. It measures current, voltage, and switches, and can source or simulate mA signals and transmitters. Zero and span values, auto ramp, and auto step are each a button press away, and the large display shows the reading alongside percent of span so loop checks go quickly. The built-in 250 ohm HART resistor sits in series with the 24V loop supply, so a HART communicator can connect without extra hardware. For tighter work, the companion ADT210 offers 0.01% of reading accuracy.
Part Number: ADT209.
Accessories
Test lead set
Alligator clips
9V Alkaline battery

Additel 260Ex Intrinsically Safe Multichannel Reference Recorder
Up to 8 measurement channels
Intrinsically safe
Field switchable pressure module
Pressure accuracy to 0.02% FS
Temperature RTD accuracy to 0.01% RDG + 0.005% FS
Data logging with real-time graphical trending
Supports hydrostatic testing
Color touchscreen display
Built-in barometer
Optional RTD probes available
Bluetooth and USB communication
Communicates with the Additel Link mobile app
ISO 17025 accredited calibration with data included
Overview
The Additel 260Ex puts pressure, temperature, barometric, and electrical measurement into one intrinsically safe handheld (ATEX and IECEx certified, Ex ia IIC T4 Ga) with eight channel configurations: a field-switchable internal pressure module, a user-calibratable barometer, two external module inputs, a synthesized differential pressure channel, two RTD channels supporting 2, 3, or 4 wire sensors, and an electrical channel measuring current, voltage, frequency, pulse, or switch with built-in loop power.
The onboard recorder logs multiple parameters at once with trend curves and statistical feedback, storing up to 10 million readings at intervals from 0.1 s to 9,999 s. That logging depth plus the intrinsic safety rating make it a strong fit for pipeline work: hydrostatic testing, air leak testing, pump station inlet and outlet checks, safety valve testing, wellhead pressure testing, and routine calibration of pressure devices in hazardous gas environments.
Available configurations. Range: V15 bar, V15 psi. Process Connection: 1/4 BSP, 1/2 BSP, M20x1.5, 1/4 NPT, 1/2 NPT.
Base model ADT260EX. Each configuration has its own Additel part number, shown as the SKU on your order.
Accessories
9811Ex-X 110V/220V external power adapter
9704Ex Chargeable Li-ion battery
9021 Test leads
9040 Hanging strap with magnet
9052Ex Ex USB Cable type A to type C
ISO 17025 accredited calibration certificate
Download Datasheet (PDF)