The ridgid micro ir 200 non contact infrared thermometer provides simple quick and accurate surface temperature readings at the push of a button simply squeeze the trigger and point the ultra sharp dual class ii lasers at the surface being measured ultra sharp dual class ii lasers easily identify the surface area being measured has a 30 to 1 distance to spot ratio this allows you to take more accurate measurements from a farther distance with adjustable emissivity to accurately measure the temp