WT327A -50-400℃ Color Screen Infrared Thermometer Industrial Handheld Temperature Tester Item Type: Thermometer Material: ABS Color: As shown in the picture Display: LCD color screen Temperature Range: -50℃-400℃ (-58℉-752℉) Temperature Measurement Error: -50℃~0℃(-58℉~32℉): ±3℃(±5℉) 0℃~400℃(32℉~752℉): ±1.5% rdg or ±1.5℃, whichever is greater Repeatability: 1% rdg or 1℃, whichever is greater Response Time: About 0.5s, 95% response Emissivity: 0.10~1.00 adjustable (0.95 preset) Object Distance Ratio: 12:1 Response Wavelength: 5um~14 um No Operation Shutdown Time: About 7 seconds Battery Power Supply: 2 x 1.5V AAA dry battery (not included) Low Battery Prompt: Less than about 2.5V low battery symbol display Overload Indication: LCD display "Hi"/"Lo" The upper and lower limits of over working environment: LCD display "AH"/"AL" Environmental Working Temperature: 0℃~40℃(32℉~104℉) Environmental Storage Temperature: -10℃~60℃(14℉~140℉)