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Do you need help? Go to see our FAQ section. To learn about thermometers and temperature measurement in more depth visit the ETI Learning Centre.

Choosing the Right Infrared Thermometer for You

There are three basic types of infrared thermometer optics, each with its own advantages and disadvantages: no-lens thermometers, fresnel lens thermometers and mica lens thermometers.

 

Infrared Lens
Cost
Durability
Temp Range
Optics
Ambient Effect
No Lens
£
starstarstar
Hot
Good
starstarstar
Fresnel Lens
££
starstar
Hotter
Better
star
Mica Lens
£££
star
Hottest
Best
starstar
No-lens ThermometersFresnel Lens ThermometersMica Lens Thermometers
TN1
IR-Chill
RayTemp 38

 

It is important to give some thought to the intended range of temperature you are likely to measure with your infrared thermometer. For best resolution, choose a thermometer with a specified range that most narrowly covers what you are planning to measure.