Dusty-Environment Noncontact Temperature Sensors

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33 Products

About Temperature Sensors

Choose between RTDs and thermocouples based on your application's maximum temperature, duration, and environment.

Noncontact Infrared Temperature Sensors

Monitor the temperature of hazardous, sensitive, and hard-to-reach surfaces without touching them. IP or NEMA rated, these sensors are protected against dust and washdowns.

Sensors with a thermocouple output communicate with devices that read thermocouple signals, so they work as replacements for thermocouples with the same output type.

For Nonmetal Surfaces with 3.25 ft. Long Cable

Sensors for nonmetal surfaces measure the temperature of plastics, fabrics, ceramics, and hot adhesives.

3-ft. Lg. Micro USB Cord with 5-Pin Terminal Block (with USB-A and USB-C Adapters)—Sensors with a micro USB cord and terminal block connect to your computer. Use the downloadable software to change the measurement temperature range and the output scale.

Close Focus Lens—Sensors with a close focus lens hone in on small, precise areas. Use them to take the temperature of chips on circuit boards, the tips on soldering irons, and other small components.

								Sensor
	Temp. Measurement Range, ° F	Min. Object Size Detected	Max. Sensing Distance	Wavelength, μm	Optical Resolution	Accuracy @ Temperature	Response Time, sec.	Lg.	Dia.	Input Voltage, V DC	For Panel Cutout Dia.	Thread Size	Includes	Enclosure Rating		Each
0 to 5V DC, 0 to 10V DC, Type K Thermocouple Output Signal







				Adjustable Emissivity (0.1 to 1.1)

				-40 to 1,886	0.03"	1.57"	8 to 14	15:1	±3° F Below 200° F ±1.5% Above 200° F	0.025	3 1/2"	1/2"	5 to 30	1/2"	M12 × 1 mm	3-ft. Lg. Micro USB Cord with 5-Pin Terminal Block (with USB-A and USB-C Adapters), Close Focus Lens	IP65	3889K12	0000000


				-40 to 1,886	0.24"	2.6 ft.	8 to 14	15:1	±3° F Below 200° F ±1.5% Above 200° F	0.025	3 1/2"	1/2"	5 to 30	1/2"	M12 × 1 mm	3-ft. Lg. Micro USB Cord with 5-Pin Terminal Block (with USB-A and USB-C Adapters)	IP65	3889K41	000000


				4 to 20 mA Output Signal







								Adjustable Emissivity (0.1 to 1.1)

								-58 to 1,886	0.03"	1.57"	8 to 14	15:1	±2° F Below 200° F ±1.5% Above 200° F	0.014	1 1/8"	1/2"	5 to 30	1/2"	M12 × 1 mm	3-ft. Lg. Micro USB Cord with 5-Pin Terminal Block (with USB-A and USB-C Adapters), Close Focus Lens	IP65, NEMA 4	3889K13	000000


								-58 to 1,886	0.26"	3.2 ft.	8 to 14	15:1	±2° F Below 200° F ±1.5% Above 200° F	0.014	1 1/8"	1/2"	5 to 30	1/2"	M12 × 1 mm	3-ft. Lg. Micro USB Cord with 5-Pin Terminal Block (with USB-A and USB-C Adapters)	IP65, NEMA 4	3889K42	000000


								Type J Thermocouple Output Signal







												Fixed Emissivity (0.95)

												32 to 662	0.17"	4 ft.	7 to 18	4:1	±6° F Below 241° F ±5% Between 241° F to 440° F Not Rated Above 440° F	0.35	3 1/2"	3/4"	12 to 24	3/4"	3/4"-16	—	IP65, NEMA 4	3889K111	000000


												86 to 932	0.17"	4 ft.	7 to 18	4:1	±10° F Below 212° F ±6° F Between 212° F to 300° F ±2% Above 300° F	0.35	3 1/2"	3/4"	12 to 24	3/4"	3/4"-16	—	IP65, NEMA 4	3889K211	000000

Accessories for Noncontact Temperature Sensors

Air Purges

Air purges flush dust, moisture, and other contaminants from the sensor lens to prevent inaccurate readings.

For Sensor Connection Thread Size	Material		Each
M12 × 1 mm	303 Stainless Steel	3889K45	000000

Mounts


Mounting Brackets	Mounting Studs

Secure your sensor with a mounting bracket or mounting stud. Mounting brackets attach to flat surfaces. Mounting studs thread into holes.

		Thread
	For Sensor Dia.	Size	Lg.	Ht.	Wd.	Dp.	Material	Mounting Fasteners Included		Each
Mounting Brackets



		1/2"	—	—	1 1/8"	3/4"	7/8"	304 Stainless Steel	No	3889K44	000000


		3/4"	—	—	1 1/2"	1 1/2"	1 1/2"	Steel	Yes	3889K32	000000


		Mounting Studs



				1/2"	M12 × 1 mm	1/4"	7/8"	3/4"	1/2"	303 Stainless Steel	—	3889K48	00000

For Metal Surfaces with 3.25 ft. Long Cable

Sensors for metal surfaces measure the temperature of both solid metals, such as heating elements, and molten metals.

								Sensor
	Temp. Measurement Range, ° F	Min. Object Size Detected	Max. Sensing Distance	Wavelength, μm	Optical Resolution	Accuracy @ Temperature	Response Time, sec.	Lg.	Dia.	Input Voltage, V DC	For Panel Cutout Dia.	Thread Size	Includes	Enclosure Rating		Each
4 to 20 mA Output Signal







				Adjustable Emissivity (0.1 to 1.1)

				122 to 662	0.2"	15.7"	2.3	22:1	±(0.3% of Temperature Measured + 3.6° F)	0.02	1 1/4"	1/2"	5 to 30	1/2"	M12 × 1 mm	3-ft. Lg. Micro USB Cord with 5-Pin Terminal Block (with USB-A and USB-C Adapters), Close Focus Lens	IP65, NEMA 4	3889K14	0000000


				122 to 662	0.26"	3.6 ft.	2.3	22:1	±(0.3% of Temperature Measured + 3.6° F)	0.02	1 1/4"	1/2"	5 to 30	1/2"	M12 × 1 mm	3-ft. Lg. Micro USB Cord with 5-Pin Terminal Block (with USB-A and USB-C Adapters)	IP65, NEMA 4	3889K43	000000

Accessories for Noncontact Temperature Sensors

Air Purges

Air purges flush dust, moisture, and other contaminants from the sensor lens to prevent inaccurate readings.

For Sensor Connection Thread Size	Material		Each
M12 × 1 mm	303 Stainless Steel	3889K45	000000

Mounts


Mounting Brackets	Mounting Studs

Secure your sensor with a mounting bracket or mounting stud. Mounting brackets attach to flat surfaces. Mounting studs thread into holes.

		Thread
	For Sensor Dia.	Size	Lg.	Ht.	Wd.	Dp.	Material	Mounting Fasteners Included		Each
Mounting Brackets



		1/2"	—	—	1 1/8"	3/4"	7/8"	304 Stainless Steel	No	3889K44	000000


		Mounting Studs



				1/2"	M12 × 1 mm	1/4"	7/8"	3/4"	1/2"	303 Stainless Steel	—	3889K48	00000

Infrared Thermometer Transmitters


	LED Display

Monitor the temperature of molten steel, furnaces, glass, and other hazardous surfaces without touching them. A built-in transmitter reads surface energy levels and converts them to analog and digital output values that can be read by a receiving device, such as a PLC. Because of this, you can use these transmitters for measuring and switching applications.

Adjust set points, emissivity range, and other settings on-site using the buttons on the transmitters. Connect transmitters to an IO-link controller (not included) to change settings remotely and alert you to errors on PLCs and human-machine interfaces.

Plug these transmitters into shielded M12 sockets since they're extremely prone to signal interference. These transmitters connect using two wires to send a 4-20mA current output and four wires to use the switching output and IO-link. Connect to pin 5 to utilize the test function to verify that the transmitter's signal processing is working correctly. To view transmitter wiring diagrams, select a part number and click Product Detail.

Their lenses resist scratches, which could cause transmitters to lose focus. All are IP-rated for protection against dust and low-pressure jets of water.

Transmitters can be used on all surfaces.

Add accessories to protect your infrared thermometer transmitter in hot or dirty environments.

Laser Sight—For best results when measuring at an angle or working on round or uneven surfaces, use transmitters with laser sight.

0.78 μm to 1.06 μm Wavelength Range—Transmitters with a wavelength range of 0.78–1.06 microns are best for use with glass.

1 μm to 1.7 μm Wavelength Range—Use transmitters with a wavelength range of 1–1.7 microns on metal, ceramics, and graphite.

8 μm to 14 μm Wavelength Range—Transmitters with a wavelength range of 8–14 microns are useful for plastic, fabrics, food products, and other metal-free surfaces.

303 Stainless Steel Housing—Made of 303 stainless steel, these transmitters resist corrosion.

	Transmitters													Brackets
	Wavelength Range, μm	Temperature Range	Resolution	Accuracy	Digital Display Type	Emissivity	Response Time, sec.	Lg.	Dia.	Housing Material	Output Type		Each		Each
Bracket Mount with Scratch-Resistant Lens



		0.78 to 1.06	932° F to 4,532° F/500° C to 2,500° C	1° F/1° C	±0.3%	LED	0.1 to 1.1	0.002	8 7/16"	1 3/16"	303 Stainless Steel	Digital/Analog	4680N115	000000000	55205K13	000000


		1 to 1.7	482° F to 2,912° F/250° C to 1,600° C	1° F/1° C	±0.5%	LED	0.1 to 1.1	0.002	8 7/16"	1 3/16"	303 Stainless Steel	Digital/Analog	4680N113	00000000	55205K13	00000
		8 to 14	32° F to 1,831° F/0° C to 1,000° C	1° F/0.5° C	±1%	LED	0.1 to 1.1	0.1	7 1/2"	1 3/16"	303 Stainless Steel	Digital/Analog	4680N111	00000000	55205K13	00000


		Bracket Mount with Scratch-Resistant Lens and Laser Sight



				1 to 1.7	482° F to 2,912° F/250° C to 1,600° C	1° F/1° C	±0.5%	LED	0.1 to 1.1	0.002	9 7/16"	1 3/16"	303 Stainless Steel	Digital/Analog	4680N114	00000000	55205K13	00000


				8 to 14	32° F to 1,831° F/0° C to 1,000° C	1° F/0.5° C	±1%	LED	0.1 to 1.1	0.1	8 1/8"	1 3/16"	303 Stainless Steel	Digital/Analog	4680N112	00000000	55205K13	00000

Accessories for Transmitters

Air Purges

Air purges flush out dust, moisture, and other contaminants on transmitter lenses that can interfere with infrared radiation focus and cause inaccurate readings.

For Sensor Connection Thread Size	Material		Each
M30 × 1.5 mm	303 Stainless Steel	4680N116	0000000

Material		Each
304 Stainless Steel	4680N117	0000000

Material		Each
304 Stainless Steel	4680N118	0000000

Material		Each
Plastic	4680N119	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.

They have internal sensors to record the tank’s thermal conductivity, which is used to calculate your tank's internal temperature.

4 mA to 20 mA Output Signal—The information is sent through a 4-20 mA signal, so you can read the temperature on controllers and data loggers.

For 1/8" Tank Wall Thickness—These sensors are preconfigured for stainless steel tanks with ⅛"-thick walls.

	For Tank								M12 Male Electrical Connection					Mounting Holes		Mounting Slots
	Wall Thk.	Min. Dia., ft.	Temp. Measurement Range, ° F	Accuracy	Response Time, sec.	Ht.	Wd.	Dp.	No. of Poles	Coding	Housing Material	Operating Temp. Range, ° F	Mounting Fasteners Included	No. of	Dia.	No. of	Wd.	Enclosure Rating	Electrical Connection Gender		Each
4 mA to 20 mA Output Signal



		1/8"	2	-4 to 212	±0.9° F	5	4 3/8"	2 5/8"	1 5/8"	8	A	Nylon	32 to 100	Yes	1	5/16"	1	5/16"	IP67	Male	5753N11	0000000

Adapters

Image of Product. Front orientation. Metric Circular Cords.

Use adapters 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.

	USB Standard	Lg., ft.	Max. Current, mA	Operating System Compatibility	Certification		Each
USB-A Male × M12 Female



	8	2.0	6	100	Windows 10 or Later	CE Marked	5780N18	000000

Pocket Infrared Thermometers


Style C	Style E

Keep these small thermometers in your pocket or toolkit to spot check the temperature of dangerous, hard-to-reach, and moving surfaces without touching them.

Warning: These infrared thermometers are not intended for medical use.

Adjustable Emissivity—Thermometers with adjustable emissivity can be calibrated for more accurate readings of shiny surfaces than thermometers with fixed emissivity.

Laser Sight—Thermometers with laser sight have a red beam of light to indicate the precise area being measured.

Maximum Distance—Maximum working distance is the distance a one inch target can be reliably measured.

																Batteries
	Style	Temp. Range	Resolution/Temp. Resolution	Accuracy	Max. Distance	Emissivity	Response Time, sec.	Ht.	Wd.	Dp.	Housing Material	Includes	Thermometer Features	Enclosure Rating	Certification	Included	Size	No. of		Each
For Dark Surfaces







				Fixed Emissivity

				C	-13° F to 482° F/-25° C to 250° C	0.1/0.1° C	±2%	Not Rated	95	1	3 1/8"	1 1/4"	3/4"	Plastic	Carrying Case	Min./Max. Memory	IP65	CE Marked	Yes	CR2032	1	9212T22	0000000


				For Dark, Light, and Shiny Surfaces







								Adjustable Emissivity

								E	32° F to 932° F/0° C to 500° C	1° F/1° C	±3.6° F/±2° C	15 ft.	0.7 to 0.95	1	6 5/16"	1 11/16"	1 11/16"	Plastic	—	Automatic Shutoff, Laser Sight	IP67	CE Marked	Yes	9V	1	6614T31	000000

Clamp-On Noncontact Temperature Sensors for Pipe

Sensor Shown Installed

(Adapter Sold Separately)

Check the inside temperature of your pipe from the outside. A good choice for when contamination is a concern, these sensors don’t touch what’s inside your line. They sit on the outside, so they won’t corrode, gunk up, or break from your line's flow. A clamp makes them quick to attach and easy to reposition—there’s no need to drill into your pipe or drain your line. They have internal sensors to record the pipe’s thermal conductivity, which is used to calculate your line’s temperature.

4 mA to 20 mA Output Signal—The information is sent through a 4-20 mA signal, so you can read the temperature on controllers and data loggers.

For Metal Pipes—Sensors for metal pipe are preconfigured for Schedule 40 stainless steel pipe. They won’t work with plastic pipe.

For Plastic Pipes—Sensors for plastic pipe are preconfigured for Schedule 40 PVC pipe. They won’t work with metal pipe.

	For Pipe								M12 Male Electrical Connection
	Size	Schedule	Temp. Measurement Range, ° F	Accuracy	Response Time, sec.	Ht.	Wd.	Dp.	No. of Poles	Coding	Housing Material	Operating Temp. Range, ° F	Enclosure Rating	Electrical Connection Gender		Each
4 mA to 20 mA Output Signal







				For Metal Pipes

				1	40	-4 to 212	±0.9° F	5	2 3/8"	2 1/2"	2"	8	A	Nylon	32 to 100	IP67	Male	5780N11	0000000


				2	40	-4 to 212	±0.9° F	5	2 3/8"	2 1/2"	2"	8	A	Nylon	32 to 100	IP67	Male	5780N13	000000
				2 1/2	40	-4 to 212	±0.9° F	5	2 3/8"	2 1/2"	1 7/8"	8	A	Nylon	32 to 100	IP67	Male	5780N15	000000
				3	40	-4 to 212	±0.9° F	5	2 3/8"	2 1/2"	1 7/8"	8	A	Nylon	32 to 100	IP67	Male	5780N16	000000
				4	40	-4 to 212	±0.9° F	5	2 3/8"	2 1/2"	1 7/8"	8	A	Nylon	32 to 100	IP67	Male	5780N17	000000




						For Plastic Pipes

						1	40	-4 to 212	±2.7° F	30	2 3/8"	2 1/2"	2"	8	A	Nylon	32 to 100	IP67	Male	5780N12	000000


						2	40	-4 to 212	±2.7° F	30	2 3/8"	2 1/2"	2"	8	A	Nylon	32 to 100	IP67	Male	5780N14	000000

Adapters

Use adapters to calibrate these sensors on your computer when your pipe isn’t the default thickness or material. Download free software and material presets to help you calibrate the sensor. If you know your pipe’s thermal conductivity, you can add another material. The software also lets you monitor and log temperature.

	USB Standard	Lg., ft.	Max. Current, mA	Operating System Compatibility	Certification		Each
USB-A Male × M12 Female



	8	2.0	6	100	Windows 10 or Later	CE Marked	5780N18	000000