About Selecting Temperature Sensors
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Quick-Connect Thermocouple Probes for Surfaces
The probe tips come attached to mounting connections for fast installation.
Note: When installing probes with wire leads, the red wire is negative.
Bolt-on probes mount on motors, machines, and other equipment for temperature readings in high-vibration environments.

Material | Wire | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thermocouple Type | Temperature Range, ° F | Probe Lg. | Accuracy | Response Time, sec. | Connection Type | Sensor Type | Insulation | Jacket | Lead Lg. | Gauge | Wd. | Thick. | Bolt Hole Dia. | Fasteners Included | Each | |
Nickel Probe | ||||||||||||||||
J | 32° to 900° | 5/8" | ±0.75% | 2 | Wire Leads | Grounded | Fiberglass | 300 Series Stainless Steel | 48" | 24 | 5/16" | 1/16" | 3/16" | No | 0000000 | 000000 |
K | 32° to 900° | 5/8" | ±0.75% | 2 | Wire Leads | Grounded | Fiberglass | 300 Series Stainless Steel | 48" | 24 | 5/16" | 1/16" | 3/16" | No | 0000000 | 00000 |
T | 32° to 900° | 5/8" | ±0.75% | 2 | Wire Leads | Grounded | Fiberglass | 300 Series Stainless Steel | 48" | 24 | 5/16" | 1/16" | 3/16" | No | 0000000 | 00000 |
Bolt-On RTD Probes for Surfaces






For reliable temperature readings in high-vibration environments, these RTD probes bolt onto the surface of motors and other equipment.
Style A and B probes are rated IP67 for protection from dust and temporary submersion.
Probes that meet DIN EN 60751 adhere to industry standards for accuracy. Probes that meet MS202 (Method 204, Test Condition D) have been tested for use in vibration-heavy environments.

Probe | Cable | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | RTD Type | Temp. Range, °F | Bolt Hole Dia. | Lg. | Wd. | Thick. | Accuracy | Response Time, sec. | Lg., ft. | Material | Environmental Rating | Specifications Met | Each | |
Stainless Steel Probe | ||||||||||||||
A | 100 ohms | -40° to 190° | 1/2" | 2" | 7/16" | 5/16" | ±0.5% | 15 | 6 | Polyurethane Rubber | IP67 | DIN EN 60751 Class A | 0000000 | 0000000 |

Probe | Cable | Wire Lead | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | RTD Type | Temp. Range, °F | Bolt Hole Dia. | Lg. | Wd. | Thick. | Accuracy | Response Time, sec. | Lg., ft. | Material | Lg. | Gauge | No. of Wires | Environmental Rating | Specifications Met | Each | |
Stainless Steel Probe | |||||||||||||||||
B | 100 ohms | -40° to 190° | 1/4" | 1 13/16" | 7/16" | 5/16" | ±0.5% | 39 | 6 | Polyurethane Rubber | 1" | 22 | 4 | IP67 | DIN EN 60751 Class A | 0000000 | 000000 |




Probe | Cable | Wire Lead | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | RTD Type | Temp. Range, °F | Bolt Hole Dia. | Lg. | Wd. | Thick. | Accuracy | Response Time, sec. | Lg., ft. | Material | Lg. | Gauge | No. of Wires | Specifications Met | Fasteners Included | Each | |
303 Stainless Steel Probe | |||||||||||||||||
C | 100 ohms | -55° to 500° | 5/32" | 3/8" | 1/2" | 3/16" | ±0.12% | 10 | 3 | PTFE | 1/2" | 26 | 3 | DIN EN 60751 Class B; MS202 (Method 204, Test Condition D) | No | 0000000 | 0000000 |
C | 1,000 ohms | -55° to 500° | 5/32" | 3/8" | 1/2" | 3/16" | ±0.12% | 10 | 3 | PTFE | 1/2" | 24 | 2 | MS202 (Method 204, Test Condition D) | No | 0000000 | 000000 |
316/316L Stainless Steel Probe | |||||||||||||||||
D | 100 ohms | -90° to 930° | 5/32" | 1 1/4" | 5/16" | 3/16" | ±0.12% | 10 | 3 | Mica Glass | 1/2" | 22 | 3 | DIN EN 60751 Class B; MS202 (Method 204, Test Condition D) | No | 0000000 | 000000 |
D | 1,000 ohms | -90° to 930° | 5/32" | 1 1/4" | 5/16" | 3/16" | ±0.12% | 10 | 3 | Mica Glass | 1/2" | 22 | 2 | MS202 (Method 204, Test Condition D) | No | 0000000 | 000000 |
300 Series Stainless Steel Probe | |||||||||||||||||
E | 100 ohms | -90° to 930° | 5/32" | 1" | 1/2" | 3/16" | ±0.12% | 10 | 3 | Mica Glass | 1/2" | 22 | 3 | DIN EN 60751 Class B; MS202 (Method 204, Test Condition D) | No | 0000000 | 000000 |
E | 1,000 ohms | -90° to 930° | 5/32" | 1" | 1/2" | 3/16" | ±0.12% | 10 | 3 | Mica Glass | 1/2" | 22 | 2 | MS202 (Method 204, Test Condition D) | No | 0000000 | 000000 |
Nickel-Plated Copper Probe | |||||||||||||||||
F | 100 ohms | -55° to 500° | 17/64" | 1" | 1/2" | 3/16" | ±0.12% | 10 | 3 | PTFE | 1/2" | 26 | 3 | DIN EN 60751 Class B; MS202 (Method 204, Test Condition D) | No | 0000000 | 000000 |
F | 1,000 ohms | -55° to 500° | 17/64" | 1" | 1/2" | 3/16" | ±0.12% | 10 | 3 | PTFE | 1/2" | 24 | 2 | MS202 (Method 204, Test Condition D) | No | 0000000 | 000000 |
Noncontact Temperature Sensors for Tanks
Take your tank’s internal temperature with these sensors that sit on the outside walls. Since they don’t touch your tank’s contents, they won’t cause contamination or corrode. To attach the sensor to your tank, weld the included studs to your tank's walls, or stick them on your tank using adhesive. Either way you mount them, you don’t need to drill or drain your tank, saving you from scheduled downtime.
These sensors are preconfigured for stainless steel tanks with 1/8"-thick walls. They have internal sensors to record the tank’s thermal conductivity, which is used to calculate your tank's internal temperature. The information is sent through a 4-20 mA signal, so you can read the temperature on controllers and data loggers.
Use communication cords (sold separately) to calibrate these sensors on your computer when your tank isn’t the default thickness or material. Download free software and material presets to help you calibrate the sensor. If you know your tank’s thermal conductivity, you can add another material. The software also lets you monitor and log temperature.
For technical drawings and 3-D models, click on a part number.

For Tank | M12 Male Electrical Connection | Mounting Holes | Mounting Slots | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Wall Thick. | Min. Dia., ft. | Temp. Measuring Range, °F | Accuracy, °F | Response Time, sec. | Ht. | Wd. | Dp. | No. of Poles | Coding | Housing Material | Mounting Fasteners Included | No. of | Dia. | No. of | Wd. | Environmental Rating | Each | ||
4-20 mA Output Signal | |||||||||||||||||||
1/8" | 2 | -4° to 212° | ±0.9° | 5 | 4 3/8" | 2 5/8" | 1 5/8" | 8 | A | Nylon Plastic | Yes | 1 | 5/16" | 1 | 5/16" | IP67 | Male | 0000000 | 0000000 |

No. of Poles | USB Standard | Lg., ft. | Max. Current | Operating System Compatibility | Specifications Met | Each | |
M12 Female × USB A Male | |||||||
---|---|---|---|---|---|---|---|
8 | 2.0 | 6 1/2 | 100mA | Windows 10 or Later | CE Marked | 0000000 | 000000 |