Accurate Infrared Thermometer for Professionals working in tough environment. Rugged tool that pass 3m drop proof with IP65 rating. It features an 10:1 distance to spot ratio and precise single laser targeting for accurate and repeatable measurements. User friendly and compact includes customized Gazelle tool bag. Resolution 0.1"C D:S Ratio 10:1 Weight 292g Drop test 3m Response time 250ms Emissivity 0.95 Spectral response 8-14"m Dimensions 189x118x55mm Laser class 2 Temperature range -35 to 450"C Best use to perform non-contact temperature measurements on transformers, motors, pumps, panels, breakers, compressors, duct, and vents. Operating Manual 9V Battery