The Elcometer 214 Infrared Digital Thermometer is a hand held battery operated instrument, which safely and accurately measure surface temperature of non reflective materials using non-contact infrared technology.

The Elcometer 214 Infrared Digital Thermometer has a spot ratio of 3:1. The closer you get to the object under inspection, the smaller the spot size and hence the more accurate the reading.

The diagram explaining optic (spot) ratios is shown below.