Thermocouples

Fieldpiece Instrument’s K- type thermocouples, sometimes known as Type-K thermocouples, combine features and functions to handle most HVACR temperature measurement applications. Our line of rugged k-type pipe-clamp thermocouples for HVACR have a snub-nose design and increased jaw strength to hug pipes and maximize thermal contact. Fieldpiece k-type wrap-tab beaded thermocouples let you choose the amount of the lead you need and stores the rest, and the optional alligator clip model easily attaches to the outside of the condenser for outdoor dry bulb measurements. The high temperature line of thermocouples can take the heat whether it’s a flue temperature measurement, piercing flexible ducts, and grill temperature measurements.

ATA1 - K-Type Thermocouple with Alligator Clip

The ATA1, K-type thermocouple can clip to HVACR equipment for convenient placement and hands free testing. Clip to condenser fins for accurate outdoor dry bulb measurement – great for finding target superheat. Clip to evaporator filters for indoor dry bulb – great for finding target evaporator exit temperature. Clip to supply vents for dry bulb supply temperature. The ATA1 can be used with any of our meters that measure temperature and any thermometer accepting a K-type thermocouple. HVACR technicians find the ATA1 extremely helpful when data logging or anytime an extra hand is needed. The wrap-tab allows the thermocouple wire to conveniently store on the plug. Just wrap the excess wire around the wrap-tab. No more tangled messes in your tool bag.

SPECIFICATIONS

Accuracy: +/- 4ºF (2°C) ; ±1°F (0.5°C) after field calibration, 32 to 176ºF (0 to 80°C)
Temperature range: -50 to 400ºF (-46 to 204°C)
Thermocouple conductors: K-type nickel chromium/nickel aluminum.
Probe insulation: Calibration and atmosphere will affect maximum useful temperature in applications. The wire insulation is designed to withstand a maximum continuous use at 400°F (204°C).
Plug: K-type thermocouple male mini plug.

ATAF1 - High Temperature K-Type Thermocouple with Alligator Clip

The ATAF1, K-type thermocouple clips to HVAC/R equipment for convenient placement and hands free testing. Fiberglass insulation withstands high temperatures up to 900°F. Clip it to residential and commercial ovens, broilers, boilers or any other high temperature application. You can also clip it to condenser fins when finding target superheat, evaporator filters, or hard to reach supply vents. The ATAF1 can be used with any of our meters that measure temperature and any thermometer accepting a K-type thermocouple. The convenient alligator clip is a great time saver when data logging or anytime an extra hand is needed. Great for meters with a 1000°F range.

The wrap-tab allows the thermocouple wire to conveniently store on the plug. Just wrap the excess wire around the wrap-tab. No more tangles.

SPECIFICATIONS

Accuracy: +/- 4ºF (2°C) ; ±1°F (0.5°C) after field calibration, 32 to 176ºF (0 to 80°C)
Temperature range: -50 to 900ºF (-46 to 482°C)
Thermocouple conductors: K-type nickel chromium/nickel aluminum.
Probe insulation: Calibration and atmosphere will affect maximum useful temperature in applications. The fiberglass wire insulation is designed to withstand a maximum continuous use at 900°F (482°C).
Plug: K-type thermocouple male mini plug.

ATB1 - K-Type Thermocouple

The ATB1, K-type bead thermocouple is used to take temperatures of air, surfaces, or liquids up to 400°F. Use the ATB1 for outdoor dry bulb temperatures when finding target superheat. The ATB1 can be used with any of our meters that measure temperature and any thermometer accepting a K-type thermocouple.

The wrap-tab allows the thermocouple wire to conveniently store on the plug. Just wrap the excess wire around the wrap-tab and feed it through one of the eyes. Keep a few of them set at different lengths for fast, job-specific, switching between thermocouples. No more tangled messes in your tool bag.

SPECIFICATIONS

ATBF1 - High Temperature K-Type Thermocouple

RETIRED

The ATBF1, K-type thermocouple's fiberglass insulation withstands high temperatures up to 900°F. The ATBF1 can be used with any of our meters that measure temperature and any thermometer accepting a K-type thermocouple. Great for meters with a 1000°F range.

SPECIFICATIONS

ATC1R - Pipe-Clamp Thermocouple 1/8” to 3/4” for Refrigeration

The ATC1R, K-type, pipe clamp thermocouple is used to take temperatures of pipes or any other cylindrical surface within its 1/8” to 3/4” jaw range. Using a pipe clamp thermocouple greatly facilitates taking superheat or subcooling measurements. Use the ATC1R for most refrigeration units. The ATC1R can be used with any of our meters that measure temperature and any thermometer accepting a K-type thermocouple.

The sensor is virtually isolated from ambient conditions, allowing the thermocouple to read the true pipe temperature for as long as it is attached. The sensor’s large surface area and increased clamping force help the sensor reach the correct temperature within 30 seconds. Because the jaw is designed for HVAC/R, its clamping ability lets you measure temperatures of pipes that are fixed, at any angle, to walls or other surfaces.

SPECIFICATIONS

ATC1R jaw range: 1/8” to3/4” pipe diameter (outside diameter)
Accuracy: +/- 4ºF (2°C) ; ±1°F (0.5°C) after field calibration, 32 to 176ºF (0 to 80°C)
Temperature range: -50 to 257ºF (-46 to 125°C)
Thermocouple conductors: K-type nickel chromium/nickel aluminum.
Probe insulation and clamp material: Calibration and atmosphere will affect maximum useful temperature in applications. The wire insulation and clamp material are designed to withstand a maximum continuous use at 257°F (125°C).
Plug: K-type thermocouple male mini plug.
Typical stabilization time: less than 30 seconds.

ATEXT10 - 10’ Extension Cable

The ATEXT10 is a K-type thermocouple extension cable designed to give you that extra reach you need when measuring temperatures. It's 10' in length and has a female k-type port on one end and the male plug on the other. It's great for use with rigid thermocouples.

SPECIFICATIONS

Thermocouple conductors: K-type nickel chromium/nickel aluminum.
Insulation: Calibration and atmosphere will affect maximum useful temperature in applications. The 24 GA ( .020 ) Teflon FEP coating is designed to withstand a maximum continuous use at 400°F ( 204°C).
Plug: K-type thermocouple male mini plug,K-type thermocouple female mini plug .

ATF1 - Rod K-Type Thermocouple for Fluids

RETIRED

The ATF1 is a K-type rod thermocouple for submerging into liquids and measuring temperature. Use with the ATEXT10 extension for easier maneuverability – especially with thermometers with K-type jacks on the face of the meter. The rod can withstand high temperatures up to 1472°F. Measures air temperature too. The cone tip can help in piercing semi-solids such as food, but it’s not sharp enough for piercing ductwork. The ATF1 can be used with any of our meters that measure temperature and any thermometer accepting a K-type thermocouple.

SPECIFICATIONS

Accuracy: ±3°F (-40 - 707°F); ±1.5°C (-40 - 375°C), ±0.4% (707 - 1472°F); (375 - 800°C)
Temperature range: -40°F – 1472°F (-40°C – 800°C)
Rod Material: Stainless steel probe tip.
Rod Diameter: 0.125 inches.
Thermocouple conductors: K-type nickel chromium/nickel aluminum.
Probe insulation: 800°C applies to metal rod only. Max temperature for plastic handle (Bakelite) is 392°F (200°C) and 221°F (105°C) for cable.
Plug: K-type thermocouple male mini plug.

ATR1 - Piercing K-Type Thermocouple for Ventilation Ducts

The ATR1, K-type thermocouple is perfect for testing the temperature of air flowing through ductwork. The long rod can reach the middle of ducts for accurate air temperature readings of the entire cross-section. The large handle gives the HVAC/R technician the leverage to push the sharp tip through soft ducts. The ATR1 can be used with any of our meters that measure temperature and any thermometer accepting a K-type thermocouple.

SPECIFICATIONS

Rod length: 4.75 inches
Rod diameter: 0.125 inches
Thermocouple cable length: 4 feet
Accuracy:
±1°F (-238 - 32°F); ±0.5°C (-150 - 0°C)
±3°F (32 - 212°F); ±1.5°C (0 - 100°C)
±4°F (212 - 932°F); ±2 (100 - 500°C)
±6°F (932 - 1472°F); ±3.2°C (500 - 800°C)
Temperature range: -238°F – 1472°F (-150°C – 800°C)
Thermocouple conductors: K-type nickel chromium/nickel aluminum.
Plug: K-type thermocouple male mini plug.

ATS1 - Disk K-Type Thermocouple for Surfaces

RETIRED

The ATS1, K-type thermocouple is great for measuring the temperature of flat surfaces. The disk tip on the thermocouple is designed to establish good thermal contact. There’s no better way to measure a flat metal surface than the ATS1. Infrared gets a close temperature measurement but the ATS1 is more accurate.
Fiberglass insulation withstands high temperatures up to 900°F. The ATS1 can be used with any of our meters that measure temperature and any thermometer accepting a K-type thermocouple.

SPECIFICATIONS

ATWB1 - K-Type Wet Bulb (sock) Thermocouple with Alligator Clip

The ATWB1, K-type wet bulb thermocouple can clip to HVAC/R equipment for convenient placement and hands free testing. Wet the durable sock and clip to evaporator filters for indoor wet bulb – great for finding target evaporator exit temperature. Clip to return vents for indoor wet bulb temperature – great for target superheat calculations. The ATWB1 can be used with any of our meters that measure temperature and any thermometer accepting a K-type thermocouple. HVAC/R technicians find the ATWB1 extremely helpful when data logging or anytime an extra hand is needed.

The wrap-tab allows the thermocouple wire to conveniently store on the plug. Just wrap the excess wire around the wrap-tab. No more tangled messes in your tool bag.

SPECIFICATIONS

Accuracy: +/- 4ºF (2°C) ; ±1°F (0.5°C) after field calibration, 32 to 176ºF (0 to 80°C)
Temperature range: -50 to 150ºF (-46 to 66°C)
Thermocouple conductors: K-type nickel chromium/nickel aluminum.
Probe insulation: Calibration and atmosphere will affect maximum useful temperature in applications. The wire insulation is designed to withstand a maximum continuous use at 400°F (204°C ) but the sock may become damaged at temperatures above 150°F.
Plug: K-type thermocouple male mini plug.

TC24 - Pipe-Clamp Thermocouple 3/8” to 1 3/8” for Air Conditioning

Pipe-Clamp Thermocouple 3/8” to 1 3/8” for Air Conditioning – TC24

Accuracy and Speed
Get your pipe temperatures fast. A new sensor gives accurate readings, even in hot and windy conditions. Use the TC24 Pipe Clamp Type K Thermocouple to take temperatures of pipes or any other cylindrical surface between 3/8" and 1 3/8".

The clamping range covers most sizes seen in residential and light commercial cooling systems. Connect to any thermometer with a Type K thermocouple jack.

The sensor is specifically designed for pipe temperature readings. Readings are extremely accurate and fast. Easily measure temperatures of pipes that are fixed, at any angle, to walls or other surfaces.

SPECIFICATIONS

TC24 jaw range: 3/8” to 1 3/8” pipe diameter (outside diameter)
Accuracy: +/- 4ºF (2°C) ; ±1°F (0.5°C) after field calibration (meets California's Title 24 specifications), 32 to 176ºF (0 to 80°C)
Temperature range: -50 to 257ºF (-46 to 125°C)
Thermocouple conductors: K-type nickel chromium/nickel aluminum.
Probe insulation and clamp material: Calibration and atmosphere will affect maximum useful temperature in applications. The wire insulation and clamp material are designed to withstand a maximum continuous use at 257°F (125°C).
Plug: K-type thermocouple male mini plug.
Typical stabilization time: less than 30 seconds.

TC48 - Large Pipe-Clamp Thermocouple 3/4” to 4 1/8”

Meet the Largest Pipe Clamp Ever Made
Ditch the zip ties and straps and perfect your readings once and for all! Not only are straps, ties and tapes inconvenient – often they are inaccurate too. You don’t want to jerry-rig the job, you want to do it right, the first time, every time.

With consistent clamping force, the TC48 is unaffected by ambient air, dust, paint, corrosion or insulation on the pipe surface. Did you know these factors can throw your readings off by as much as 3-4 degrees? Whether you’re in commercial, refrigeration or residential/light commercial, accuracy always matters – and we know, sometimes size matters too. At 4 1/8” the TC48 offers the widest opening on the market, making it the ideal fit for most standard jobs.

And because speed matters too, our patented Rapid Rail™ Sensor Technology uses electrically conductive pipe to complete the circuit and stabilize immediately, offering direct, reliable and secure connections – FAST – even on wet or damp pipes. It’s also compact and built for single-hand use (which comes in super handy for those harder to reach areas); plus, with an extra-long six-foot cord, there’s no more crouching and squatting while you wait for a reading.

SPECIFICATIONS

Pipe Contact Surface Compatibility: Electrically conductive
Pipe Size Compatibility: 3/4" to 4 1/8" (19.05mm to 104.78mm) OD
Rapid Rail™ Sensor Technology thermocouple (nickel chromium / nickel aluminum)
Type K male mini plug for a universal fit
Measurement Range: -50°F to 257°F (-46°C to 125°C)
Stabilizes in 3 seconds
±4°F (±2.2°C) thermocouple accuracy, only ±1.0°F (±0.6°C) after field calibration*
Waterproof, rugged, and built to withstand the rigors of field use
Meets California's Title 24 requirements