Specifications:Material: PC+ABSResolution:0.1C(0.1F)Storage temperature:0-50C(32~122F)Operation temperature:10~40C(50~104F)Relative humidity: 85%Power:DC 3V (Two AAA battery in series,product does not contain battery)Dimension:158*90*37MMWeight:Gross 267g, Net 137gMeasurement range in human body mode:32.0-42.5CMeasurement range in surface mode:0~100CPrecision in human body mode: 0.3C(0.45F)Precision in surface mode: 1.0C(33.8F)Best measurement distance: within 5cm (2 inch)Time to automatic shut down: 8 seconds