INFRARED HANDLED THERMOMETER WITH GUN SHAPE -50~550 C Specification Temperature range : -50~550°c(-58~1022°f) Accuracy : ±2%or±2°c(2.7°f) Distance spot ratio : 12:1 Emissivity : 0.95 pre-set Resolution : 0.1°c or 0.1°f Response time & wavelength : 500ms & (8-14)um Repeatability : ±1%or±0.1°c(1.8°f) °c/°f selection : yes Data hold function : yes Laser target pointer selection : yes Backlight display selection : yes Auto power shut off : yes Low battery indication : yes