Item Type: Infrared Thermometer_x000D_ Model: DT-820V_x000D_ Material: ABS_x000D_ Battery: 1 x 9V 6F22 (battery not included)_x000D_ Uses: factory equipment, industrial temperature, food preparation, safety and fire inspection, plastic molding, asphalt, etc._x000D_ Temperature Range -50~500(-58~932)_x000D_ Object Distance Ratio 12:1_x000D_ Display Resolution0.1(0.1)_x000D_ Emissivity0.95_x000D_ Accuracy Range_x000D_ -50~20(-58~68)3(5.4)_x000D_ 20~500(68~932)2.0% or 2(3.6)_x000D_ Repeatability1(1.8)_x000D_ Response Time1s_x000D_ Spectral Response8~14um_x000D_ Over Range DisplayDisplay will shoue "---"_x000D_ Laser Aiming1mW 650nm ,Laser Class II_x000D_ Operating Temperature0~50(32~122)_x000D_ Storage Temperature -10~60(14~140)_x000D_ Relative Humidity10%~90%RH to operate,80%RH to storage