Power Supply: Alkaline button battery LR41,1.5V, 0.1V Measuring range 32.0 ℃ to 42.9 ℃ Display resolution :0.1℃ Measurement accuracy: error in the range of 37.0℃~39.0℃, ±0.1C; In the range of 39.1℃~41.0℃, 35.3 ℃~ 36℃, the error is 0.2℃ The error between below 35.3 ° C and above 41.0 ° C is 03 ° C Operation mode: continuous operation Temperature unit Celsius (° C) Waterproof degree IPX0 The product size is about 136X20X14(mm) length, width and height Product weight Approx. 13.0g(excluding battery)