Certificate: Comes with general calibration certificate Measurement temperature range (℃): -39.9 to 110 Temperature minimum display (℃): 0.1 Temperature sensitivity length (mm): 20 Power supply (V): 1 AAA battery Width (mm): 39 Depth (mm): 60 Height (mm): 14 电源:1 AAA电池 温度传感器:热敏电阻 防水性能:防溅型,相当于IPX4 传感器电缆长度:大约3M