This handy device can be used in lots of applications that require a non contact temperature reading checked. it can be used in mechanical repairers. tune ups. refrigerators. cool rooms. food. anything that requires quick & easy surface temperature checks can be done by aiming the red laser designator at the item to be measured & squeeze the simple trigger action to get an instant temperature reading on the backlit liquid crystal display. it also has an auto power off feature to save batteries. this unit can read accurately out to 3mtrs from the subject. it has a temperature measuring range of -25c to 350c with a + or 2% of accuracy at 2c.... » read more