External sensor cord: 3m Waterproof specification (IPX4) Measurement temperature range (℃): Minimum -50℃ Maximum 90℃ Temperature display (℃): 0.1 Power supply (V): 1 x AAA battery (included) Measurement temperature range (℃) IN/OUT: -5 to 50/-50 to 90 Temperature display (℃): 低-50℃ 大90℃ 电源:1 x AAA电池(随附)