The Infrared Thermometer is trigger operated. It features a Class II Laser emitter and a digital LCD display with blue backlight. The display can be set to either Centigrade or Fahrenheit. Ideal for use in electrical, automotive and catering industries. Uses include checking temperature of live electrical objects, air conditioners, car engines, tyres, brakes, food, ovens etc. Measurement Range: -38 to +520°C (-36.4 ~ +968°F).Spectral Response: 7.5-13.5um.Power: 2 x 1.5V AAA batteries (supplied). Features: Digital LCD display with backlight Centigrade/Fahrenheit button Centigrade/Fahrenheit button Temperature range -38°C to 520°C (-36.4 ~ +968°F) Auto power shut off and battery level indicator Specifications: Dimensions: H:23.0 x W:5.0 x D:10.0 cm Colour: Multi Guarantee:5 years Material: Plastic Model Number: FAIDETIRTHER