We dont need any battery to power it up.
Easy to read and use.
Dependable reading with high accuracy.
Convenient size and quality construction.
Suitable to monitor normal in / outdoor weather condition.
Applied for office, restaurant, hotel lobby, garden, classroom, laboratory, workshop and house, etc.
Temperature Measuring Range: -20-50 degree
Dimension:7.5 X 2.3 CM
1 x Mechanical Hygrometer