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.
Hose-clamp and hook-and-loop probes fit around pipes, tubes, and cylindrical containers.
Bolt-on probes mount on motors, machines, and other equipment for temperature readings in high-vibration environments.
| Thermocouple Type | Temperature Range, ° F | Opening Range | Accuracy | Response Time, sec. | Cable Lg., ft. | Connection Type | Sensor Type | Cable Material | Max. Cable Temperature, ° F | Pin Lg. | Wd. | Fasteners Included | Each | |
301 Stainless Steel Probe  | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| J | 32° to 250° | 11/16" - 1 1/4" | ±0.75% | 25 | 10 | Flat Pin | Grounded | Stainless Steel | 950° | 1/2" | 9/16" | Yes | 000000000 | 000000 |
| J | 32° to 250° | 13/16" - 1 1/2" | ±0.75% | 25 | 10 | Flat Pin | Grounded | Stainless Steel | 950° | 1/2" | 9/16" | Yes | 000000000 | 00000 |
| J | 32° to 250° | 1 5/16" - 2 1/4" | ±0.75% | 25 | 10 | Flat Pin | Grounded | Stainless Steel | 950° | 1/2" | 9/16" | Yes | 000000000 | 00000 |
| K | 32° to 250° | 11/16" - 1 1/4" | ±0.75% | 25 | 10 | Flat Pin | Grounded | Stainless Steel | 950° | 1/2" | 9/16" | Yes | 000000000 | 00000 |
| K | 32° to 250° | 13/16" - 1 1/2" | ±0.75% | 25 | 10 | Flat Pin | Grounded | Stainless Steel | 950° | 1/2" | 9/16" | Yes | 000000000 | 00000 |
| K | 32° to 250° | 1 5/16" - 2 1/4" | ±0.75% | 25 | 10 | Flat Pin | Grounded | Stainless Steel | 950° | 1/2" | 9/16" | Yes | 000000000 | 00000 |
Material | Strap | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thermocouple Type | Temperature Range, ° F | Accuracy | Response Time, sec. | Cable Lg., ft. | Connection Type | Sensor Type | Cable | Insulation | Jacket | Max. Cable Temperature, ° F | Pin Lg. | Wire Gauge | Wd. | Lg. | Each | |
Nylon Probe | ||||||||||||||||
| J | -310° to 250° | ±3° F | 60 | 10 | Flat Pin | Exposed | PVC Plastic | PVC | PVC | 250° | 1/2" | 24 | 1" | 8" | 000000000 | 000000 |
| K | -415° to 250° | ±3° F | 60 | 10 | Flat Pin | Exposed | PVC Plastic | PVC | PVC | 250° | 1/2" | 24 | 1" | 8" | 000000000 | 00000 |
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 |
Thermocouple Terminal Blocks
Connect thermocouple wires without soldering or splicing. The terminals on these terminal blocks are made from same materials as thermocouples to ensure no signal is lost. Also known as barrier strips, they shield connections from each other to keep them neat and minimize the chance of short circuits. Choose a terminal block that matches your thermocouple type. You should also make sure the equipment you’re connecting it to is also compatible with the same thermocouple type.
For easy wiring, each end is labeled positive or negative. Mount these terminal blocks to a panel or machine using the mounting holes.
For technical drawings and 3-D models, click on a part number.
Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Circuits | For Wire Gauge | Wire Connection Type | Terminal Size | Terminal Ctr.-to-Ctr. | Lg. | Wd. | Ht. | Temp. Range, ° F | Mounting Location | Mounting Fasteners Included | Dia. | No. of | Specifications Met | Each | |
Type J | |||||||||||||||
| 2 | 16-14 | Screw Terminals | No. 6 | 7/16" | 2 3/8" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 000000 |
| 4 | 16-14 | Screw Terminals | No. 6 | 7/16" | 4 3/4" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
| 6 | 16-14 | Screw Terminals | No. 6 | 7/16" | 7 1/8" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
| 8 | 16-14 | Screw Terminals | No. 6 | 7/16" | 9 1/2" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
| 10 | 16-14 | Screw Terminals | No. 6 | 7/16" | 11 7/8" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
Type K | |||||||||||||||
| 2 | 16-14 | Screw Terminals | No. 6 | 7/16" | 2 3/8" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
| 4 | 16-14 | Screw Terminals | No. 6 | 7/16" | 4 3/4" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
| 6 | 16-14 | Screw Terminals | No. 6 | 7/16" | 7 1/8" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
| 8 | 16-14 | Screw Terminals | No. 6 | 7/16" | 9 1/2" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
| 10 | 16-14 | Screw Terminals | No. 6 | 7/16" | 11 7/8" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
Type T | |||||||||||||||
| 2 | 16-14 | Screw Terminals | No. 6 | 7/16" | 2 3/8" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
| 4 | 16-14 | Screw Terminals | No. 6 | 7/16" | 4 3/4" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
| 6 | 16-14 | Screw Terminals | No. 6 | 7/16" | 7 1/8" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
| 8 | 16-14 | Screw Terminals | No. 6 | 7/16" | 9 1/2" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
| 10 | 16-14 | Screw Terminals | No. 6 | 7/16" | 11 7/8" | 1 5/16" | 1/2" | -55° to 300° | Surface | No | 0.17" | 4 | UL Listed | 0000000 | 00000 |
Terminal Blocks for Thermocouple and RTD Connection Heads
Connect thermocouples and RTDs to extension wire and instrumentation. These terminal blocks mount inside a connection head and work with any thermocouple or RTD probe type. Choose one with enough circuits to accommodate your probe. Make sure to connect extension wire that matches your probe type.
For technical drawings and 3-D models, click on a part number.
Mounting Slot | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Circuits | For Max. Wire Gauge | Max. Temperature, °F | Dia. | Ht. | Wd. | Dp. | Material | Mounting Fasteners Included | No. of | Ht. | Wd. | Each | |
Round | |||||||||||||
Screw Terminals | |||||||||||||
| 2 | 14 | 1000° | 1 15/16" | __ | __ | 3/4" | Ceramic | Yes | 2 | 3/16" | 5/16" | 0000000 | 000000 |
| 3 | 14 | 1000° | 1 15/16" | __ | __ | 3/4" | Ceramic | Yes | 2 | 3/16" | 5/16" | 0000000 | 00000 |
| 4 | 14 | 1000° | 1 15/16" | __ | __ | 3/4" | Ceramic | Yes | 2 | 3/16" | 5/16" | 0000000 | 00000 |
| 6 | 14 | 1000° | 1 15/16" | __ | __ | 3/4" | Ceramic | Yes | 2 | 3/16" | 5/16" | 0000000 | 00000 |
Oblong | |||||||||||||
Screw Terminals | |||||||||||||
| 2 | 14 | 1000° | __ | 1 3/8" | 2" | 1" | Ceramic | Yes | 2 | 3/16" | 9/16" | 00000000 | 00000 |
| 3 | 14 | 1000° | __ | 1 3/8" | 2" | 1" | Ceramic | Yes | 2 | 3/16" | 9/16" | 00000000 | 00000 |
| 4 | 14 | 1000° | __ | 1 3/8" | 2" | 1" | Ceramic | Yes | 2 | 3/16" | 9/16" | 0000000 | 00000 |
| 6 | 14 | 1000° | __ | 1 3/8" | 2" | 1" | Ceramic | Yes | 2 | 3/16" | 9/16" | 0000000 | 00000 |
Soldering Iron Tip Thermometers
Touch the tip of your soldering iron for a fast, accurate temperature reading. Within about five seconds, you'll know how hot the iron is, so you can decide whether it's ready for your particular soldering material and application.
A metal alloy coating on the sensor's contact point resists corrosion and oxidation, so your readings will stay accurate throughout the life of the thermometer. And a sensor burnout alarm alerts you when the sensor is worn out and needs to be replaced.
Press the auto hold button to smooth out small, 1° to 2° fluctuations in temperature, which can be distracting when trying to read the display. Once the thermometer has a stable reading, it displays the average temperature instead of the exact temperature.
The max hold button displays the highest measured temperature, so you know your soldering iron hasn't become too hot for the job. It's especially useful when you're soldering sensitive components, such as printed writing boards (PWBs).
These thermometers have three standards markings: MET, CE, and EMC. MET means they meet U.S. and Canadian performance and safety standards. CE is the marking for European performance and safety standards. And EMC markings indicate the thermometers meet European standards for electromagnetic compatibility.
Some thermometers come with a calibration certificate traceable to NIST, which states that the thermometer has passed a test for accuracy.
| Temperature Range | Resolution | Accuracy | Ht. | Wd. | Dp. | Housing Material | Specifications Met | Digit Ht. | Batteries Included | Includes | Each | |
Thermometers | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 32° to 932° F/0° to 500° C | 1° F/1° C | ±6° F/±3° C | 5 1/2" | 2 11/16" | 1 3/4" | Plastic | MET Marked, CE Marked, EMC Marked | 7/8" | Yes | Ten Replacement Sensors | 00000000 | 0000000 |
Thermometers with Calibration Certificate Traceable to NIST | ||||||||||||
| 32° to 932° F/0° to 500° C | 1° F/1° C | ±6° F/±3° C | 5 1/2" | 2 11/16" | 1 3/4" | Plastic | MET Marked, CE Marked, EMC Marked | 7/8" | Yes | Ten Replacement Sensors | 00000000 | 000000 |