Infrared Temperature Sensors

Infrared temperature sensors have a variety of applications. As they have no need to 'touch' the surface they are measuring, they are a highly efficient solution to temperature measurement in all kinds of environments, and in particular high-temperature measurements in challenging conditions. They are a key component of thermal imaging cameras and are so vital in energy conservation and maintenance, and are also used in medical applications in IR thermometers.

How Do Infrared Temperature Sensors Work?

Infrared (IR) temperature sensors emit an infrared energy beam focused by a lens onto a surface to detect the surface or object temperature. The reflected beam is received back in the sensor which converts the energy to an electrical signal that can be displayed in units of temperature. The sensor compensates for ambient temperature variation to give an accurate temperature reading.

Measuring Different Surface Materials

With different temperature ranges, sensor types and outputs available, it is important to choose the infrared temperature sensor that is appropriate for your application. Painted surfaces, paper, thick plastics, food, water, asphalt, rubber, wood and other non-metals all have a high emissivity. These materials can be measured easily using general-purpose sensors with a fixed emissivity setting. Sensors with an adjustable emissivity setting allow fine-tuning of the measurement accuracy for use on partially reflective materials such as metals.


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Description Price Sensor Type Response Time Accuracy Cable Length Supply Voltage Minimum Temperature Sensed Output Type Communication Protocol Light Source Maximum Temperature Sensed Housing Material Interface Mounting Type Diameter
RS Stock No. 553-311
Mfr. Part No.PC151MT-0WJ
BrandCalex
SGD762.12
Each
units
MA Output Signal 240 ms 1 % 1m 6 → 28 V dc 0°C Analogue - Infrared +250°C Aluminium, Stainless Steel 316 - M16 x 1 mm Thread 16 mm
RS Stock No. 779-4314
Mfr. Part No.CIRSPMHA201CTCRTMSD
BrandCalex
SGD921.03
Each
units
MA Output Signal 240 ms 1 % 1m 24 V DC -20°C Alarm, Analogue - Infrared +1000°C Aluminium, Stainless Steel 316 Touch Screen Display M16 x 1 mm Thread 16 mm
RS Stock No. 184-4341
Mfr. Part No.PC151MT-3
BrandCalex
SGD305.25
Each
units
Type J Thermocouple 240 ms ±1°C or ±1% of reading 1m 6 → 28 V dc 0°C Type J Thermocouple - Infrared +250°C Stainless Steel 316 - M16 x 1 mm Thread 18 mm
New
RS Stock No. 214-4076
Mfr. Part No.07301.0-00
BrandSTEGO
SGD58.47
Each
units
- 2.5 minutes s, 5 seconds s - - - -40°C - - - +70°C - IO-Link - -
New
RS Stock No. 205-3250
Mfr. Part No.PMO-151-HT-J
BrandCalex
SGD364.07
Each
units
Type J Thermocouple 240 ms ±1°C or ±1% of reading 1m 8 → 28 V dc 0°C Type J Thermocouple - Infrared +500°C Aluminium, Stainless Steel 316 - M16 x 1 mm Thread 18 mm
New
RS Stock No. 214-4075
Mfr. Part No.07300.0-00
BrandSTEGO
SGD63.15
Each
units
- 1.5 minutes s, 7 seconds s 2 % 2m - -40°C - - - +80°C - IO-Link - -
RS Stock No. 133-6336
Mfr. Part No.PUA8-301
BrandCalex
SGD749.37
Each
units
MA Output Signal 200 ms ±1°C or ±1% of reading 1m 6 → 28 V dc -40°C USB, 4-20 mA MODBUS Infrared +1000°C Stainless Steel 316 USB M20 x 1 mm Thread 27.6 mm
RS Stock No. 905-8768
Mfr. Part No.PN151
BrandCalex
SGD264.61
Each
units
V Output Signal 125 ms ±1.5°C or ±1.5% of reading 1m - 0°C 0-10 V DC, 0-5 V DC, Alarm, 1-5 V DC NFC Infrared +1000°C ABS, Aluminium NFC Depth 7 mm, M3 x 0.5 mm thread, 2 x holes 31 mm
RS Stock No. 133-6337
Mfr. Part No.PCAN21
BrandCalex
SGD461.65
Each
units
MA Output Signal 200 ms ±1°C or ±1% of reading 1m 12 → 24 V dc -20°C CAN-Bus CAN-BUS Infrared +1000°C Stainless Steel 316 - M16 x 1 mm Thread 16 mm
RS Stock No. 839-0718
Mfr. Part No.LCT
BrandCalex
SGD409.35
Each
units
MA Output Signal 240 ms - 1m Via USB 100°C - - Infrared +1000°C Aluminium USB None 20 mm
RS Stock No. 134-8547
Mfr. Part No.TW2001
SGD1,849.11
Each
units
MA Output Signal <2 ms <±0.5 % - - +250°C - - - +1600°C - - - 30 mm
RS Stock No. 553-349
Mfr. Part No.PC21MT-0
BrandCalex
SGD330.71
Each
units
MA Output Signal 240 ms 1 % 1m 6 → 28 V dc 0°C Analogue - Infrared +250°C Stainless Steel 316 - M16 x 1 mm Thread 18 mm
RS Stock No. 779-4301
Mfr. Part No.PM-MA-21-CT-CRT-MSD
BrandCalex
SGD724.56
Each
units
MA Output Signal 240 ms 1 % 1m 24 V DC -20°C Alarm, Analogue - Infrared +1000°C Aluminium, Stainless Steel 316 Touch Screen Display M16 x 1 mm Thread 16 mm
RS Stock No. 100-0153
Mfr. Part No.PN151-K
BrandCalex
SGD279.23
Each
units
Type K Thermocouple 125 ms ±1.5°C or ±1.5% of reading 1m 6 → 28 V dc 0°C Alarm, Type K Thermocouple NFC Infrared +1000°C ABS, Aluminium NFC Depth 7 mm, M3 x 0.5 mm thread, 2 x holes 31 mm
RS Stock No. 134-8546
Mfr. Part No.TW2000
SGD1,474.04
Each
units
MA Output Signal <100 ms <±1 % - - 0°C Analogue - - +999.5°C - - - 30 mm
New
RS Stock No. 205-3249
Mfr. Part No.PMO-151-HT-K
BrandCalex
SGD364.07
Each
units
Type K Thermocouple 240 ms ±1°C or ±1% of reading 1m 8 → 28 V dc 0°C Type K Thermocouple - Infrared +500°C Aluminium, Stainless Steel 316 - M16 x 1 mm Thread 18 mm
RS Stock No. 161-8103
BrandRS PRO
SGD291.21
Each
units
V Output Signal 250 ms ±1.5°C or ±1.5% of reading 1m 24 V dc 0°C Alarm, Analogue - Infrared +1000°C ABS, Aluminium - Depth 7 mm, M3 x 0.5 mm thread, 2 x holes 31 mm
RS Stock No. 905-8774
Mfr. Part No.PMU21
BrandCalex
SGD310.62
Each
units
- 125 ms ±1°C or ±1% of reading 1.45m - -20°C Modbus, USB MODBUS Infrared +1000°C Stainless Steel 316 USB M16 x 1 mm Thread 18 mm
New
RS Stock No. 205-3248
Mfr. Part No.PMO-151-HT-C
BrandCalex
SGD343.73
Each
units
- 240 ms ±1°C or ±1% of reading 1m 8 → 28 V dc 0°C 4-20 mA - Infrared +500°C Aluminium, Stainless Steel 316 - M16 x 1 mm Thread 18 mm