WT323B 50℃850℃ Infrared Thermometer Industrial Portable Handheld Electronic Temperature Tester Condition: Item Type: Infrared Thermometer Material: ABS Color: As shown in the picture LCD Display: Color LCD Temperature Range: -50℃-850℃ (-58℉-1562℉) Measurement and Display Accuracy: 0.1℃ Temperature Error: -50℃-0℃ (-58℉-32℉) ±3℃ (±5℉) 0℃-850℃ (32℉-1562℉) ±1.5% rdg or ±1.5℃ (2.7℉)taking the maximum Measuring Range of Type K Thermocouple: -40℃-500℃ (-40℉-932℉) Repeatability: 1% rdg or 1℃taking the maximum Response Time: 0.5s 95% of the response Adjustable Emissivity: 0.10-1(Default is 0.95) Distance-Spot Ratio: 12: 1 Response Wavelength: 8um-14um Lasering Light: Circular spot Flashlight: Ultraviolet lamp Working Environment: 0℃-40℃ (32℉-104℉) Relative Humidity of Working Environment: 10%RH-90%RH Does Not Condense Ambient Storage Temperature: -10℃-60℃ (14℉-140℉) Power Supply: 1.5V AAA battery (Not included) Low Power Prompt: Display symbol of low power less than 2.4V Overload Indicator: LCD displays "Hi" /"Lo" Type K Thermocouple Specifications Measurement Range: 0℃-250℃ (short term: 300℃) Measurement Error: ±2.5℃ or 0.75% rdg taking the maximum Thermal Response Time: <10S Weight: Approx.300g/10.6oz