Thermocouple Probes

Type K Surface Probes

connectorPlastic handles and thermocouple plugs are rated for short term exposure of 250°F (121°C) and extended exposure of 212°F (100°C). Sensor and cable ranges are listed for each probe.
Thermocouple Probe Quick Selection
Immersion/General Purpose

Precision Surface Probe

Model: 103-030/303-030

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This is the fastest and most accurate handheld surface probe we've seen. Readings generally take less than 5 seconds! The sensor is made from flat-spring ribbons of thermocouple material. Very popular in equipment servicing applications and in the plastics and packaging industries.
Sensor Range: -58 to 482°F (-50 to 250°C)
Handle (ABS blend): Max temp 221°F (105°C)
Cable: 14 to 221°F (-10 to 105°C)
Time Constant: Less than 0.5 seconds typical in liquid. Less than 2.5 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)
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Right Angled Precision Surface Probe

Model: 103-032/303-032

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Same sensor design as above but with a right angle bend in the shaft to improve access where the surface is hard to reach.
Sensor Range: -58 to 482°F (-50 to 250°C)
Handle (ABS blend): Max temp 221°F (105°C)
Cable: 14 to 221°F (-10 to 105°C)
Time Constant: Less than 0.5 seconds typical in liquid. Less than 2.5 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)
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Roller Surface Probe

Model: 303-036/038

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Uses the flat spring thermocouple design with roller wheels to allow use on moving surfaces and rotating rollers. Choose from stainless steel or PTFE rollers. Surface speeds should not exceed 100 meters per minute.
Sensor Range: -58 to 482°F (-50 to 250°C)
Handle (ABS blend): Max temp 221°F (105°C)
Cable: 14 to 221°F (-10 to 105°C)
Time Constant: Less than 0.5 seconds typical in liquid. Less than 2.5 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from -58 to 212°F (-50 to 100°C)
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Griddle Probe

Model: 113-018

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Heavy duty weighted surface probe for measuring temperatures of hot plates and grills. Stainless steel armor protects the cable from hot surfaces. Uses the flat ribbon spring sensor design for speed and accuracy. Though designed for the fast food business, this probe is used by many other industries where it would be convenient to set the probe on a surface and leave it for extended measurements.
Sensor Range: -58 to 482°F (-50 to 250°C)
Transition (SST): Max temp 482°F (250°C)
Cable: -58 to 482°F (-50 to 250°C)
Time Constant: Less than 2 seconds typical in liquid. Less than 10 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)


Heavy Duty Surface Probe

Model: 103-020/303-020

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Rugged and durable design covers a very wide range. Used in many industries for high temperature metal surfaces.
Sensor Range: -58 to 1832°F (-50 to 1000°C)
Handle (ABS blend): Max temp 221°F (105°C)
Cable: 14 to 221°F (-10 to 105°C)
Time Constant: Less than 1 second typical in liquid. Less than 4 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)
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Right Angled Heavy Duty Surface Probe

Model: 103-028/303-028

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Same as above but with a bend in the shaft for hard to reach surfaces.
Sensor Range: -58 to 1832°F (-50 to 1000°C)
Handle (ABS blend): Max temp 221°F (105°C)
Cable: 14 to 221°F (-10 to 105°C)
Time Constant: Less than 1 second typical in liquid. Less than 4 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)
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Surface Probe

Model: 103-000/303-000

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This easy to use surface probe features a 1/4" copper disc that is spring loaded and fit inside a stainless steel shaft. The shaft end is cut and bent into a tripod to aid in positioning the sensor flat against a surface. The wide range makes this probe useful in a wide variety of industrial uses.
Sensor Range: -58 to 1112°F (-50 to 600°C)
Handle (ABS blend): Max temp 221°F (105°C)
Cable: 14 to 221°F (-10 to 105°C)
Time Constant: Less than 2 seconds typical in liquid. Less than 10 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)
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Ribbon Surface Probe

Model: 103-044/303-044

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Features a 0.32" diameter cylindrical head with a stainless steel ribbon. The thermocouple sensor is welded to the back of the ribbon.
Sensor Range: -58 to 482°F (-50 to 250°C)
Handle (ABS blend): Max temp 221°F (105°C)
Cable: 14 to 221°F (-10 to 105°C)
Time Constant: Less than 0.5 seconds typical in liquid. Less than 2.5 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)
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Bell Surface Probe

Model: 113-084/313-084

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These fast response surface probes have a bell-shaped housing with a thin, flat, stainless steel measuring disc, ideal for measuring surface temperatures.
Sensor Range: -58 to 500°F (-50 to 260°C)
Handle (Heavy Duty): Max temp 185°F (85°C)
Cable: 14 to 221°F (-10 to 105°C)
Time Constant: Less than 5 seconds typical in liquid. Less than 25 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)
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Plug-Mounted Surface Probe

Model: 113-045/113-046

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Same as the Ribbon Surface Probe above but with no handle or cable. The shaft is mounted on a miniature thermocouple connector for plugging directly into type K meters. Available with straight or right angle tips. An optional detachable coiled or straight extension lead is also available. Max. temp. 482°F
Sensor Range: -58 to 482°F (-50 to 250°C)
Transition (Plug): Short term exposure of 250°F (121°C) and extended exposure of 212°F (100°C)
Time Constant: Less than 0.5 seconds typical in liquid. Less than 2.5 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)
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Between Pack Probe

Model: 103-060

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Rigid stainless steel sheath is flattened for insertion between packages of produce, frozen foods or other products. Slips easily between cartons or plastic bagged products. The tip is rounded to minimize accidental penetration of packaging materials.
Sensor Range: -58 to 482°F (-50 to 250°C)
Handle (ABS blend): Max temp 221°F (105°C)
Cable: 14 to 221°F (-10 to 105°C)
Time Constant: Less than 3 seconds typical in liquid. Less than 15 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)


Magnet Surface Probe

Model: 113-016

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Easy to use magnet probe is supplied with a 39" PTFE cable. The probe is ideal for measuring the surface temperature of ferrous metals. Many applications in the HVAC, appliance service, plant engineering and equipment research or manufacturing.
Sensor Range: -58 to 176°F (-50 to 80°C)
Transition (SST): Max temp 176°F (80°C)
Cable: -58 to 176°F (-50 to 80°C)
Time Constant: Less than 20 seconds typical in liquid. Less than 100 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 176°F (0 to 80°C)


Velcro Pipe Probe

Model: 113-080

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Used to wrap around medium and large diameter pipes. Popular in plant engineering and HVAC.
Sensor Range: -58 to 212°F (-50 to 100°C)
Transition (SST): Max temp 221°F (105°C)
Cable: 14 to 221°F (-10 to 105°C)
Time Constant: Less than 20 seconds typical in liquid. Less than 100 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)


Pipe Clamp Probe

Model: 113-040/313-040

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Ideal for measuring the surface temperature of pipes or tubing in refrigeration and HVAC systems. Can be used on pipes from 0.24" diameter up to 1.2" diameter.
Sensor Range: -58 to 212°F (-50 to 100°C)
Transition (SST): Max temp 221°F (105°C)
Cable: 14 to 221°F (-10 to 105°C)
Time Constant: Less than 2 seconds typical in liquid. Less than 10 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)
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Washer Thermocouple

Model: 113-440/MC

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Easy method to measure surface temperature permanently. The thermocouple sensing junction is located on a washer with a 1/4" diameter hole for bolting to the surface to be measured. Each probe is supplied with a 78" braided stainless steel cable for durability. Order with bare lead termination for panel meters or controllers or a mini-connector for plugging in to a handheld meter.
Sensor Range: -77 to 660°F (-75 to 350°C)
Transition (SST): Max temp 660°F (350°C)
Cable: -77 to 660°F (-75 to 350°C)
Time Constant: Less than 2 seconds typical in liquid. Less than 10 seconds full reading.
Accuracy: ±0.9°F (±0.5°C) from 32 to 212°F (0 to 100°C)
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Coiled Type K Extension Lead

Model: XCK-2M-MF

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Extend the reach of your probe with this probe extension lead. Cable is coiled and works with type K probes and meters. Features a plug on one end and socket on the other. Length is 79" (2 meters) from plug to socket.
Cable: 14 to 221°F (-10 to 105°C)


Straight Type K Extension Lead

Model: XSK-3M-MF

ThermoWorks Image
Extend the reach of your probe with this probe extension lead. Cable is straight and works with type K probes and meters. Features a plug on one end and socket on the other. Length is 118" (3 meters) from plug to socket.
Cable: 14 to 221°F (-10 to 105°C)

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