... axial laser aiming mode-Hand-held ,Non-Contact, infrared thermometer-Wider/Auto Range, rapid response, LCD display-Emissivity adjusting, ... -type temperature measuring-Maximum/ minimum/ average temp. reading, temp. difference and upper/lower temp. limit setting, over-limit alarming,-Data ... 9V battery -Ambient temperature: -10 to +50 ºC -Ambient Humidity: 10% to 90% RH at 30 ºC -Storage temperature: ...