Features:
Measure temperature and humidity, wet bulb and dew point temperature.
Digital humidity and thermometers are widely used in industrial, agricultural, meteorological, medical, daily life, construction engineers, warehouses, computer rooms and data storage.
Maximum/minimum data maintenance function with high precision and fast response.
The backlit LCD display makes it easy to operate in the dark.
Low battery indicator, automatic power off, energy saving.

Specification:
Material: ABS plastic
Data update: 0.4 s
Working conditions: -20-60 degrees Celsius / -4-140 degrees Fahrenheit, 45%RH-80%RH
Storage conditions: -20-60 degrees Celsius / -4-140 degrees Fahrenheit, 45%RH-80%RH
Power: 1 * 9V battery (not included)
Item size: 172*53.8*35mm/ 6.77*2.12*1.38inch
Automatic shutdown: 10 minutes

Relative humidity:
Range: 0-99% RH
Resolution: 0.1%
Accuracy: ± 3. 0% RH (20% - 80%), ± 4. 0% RH (80% - 99%)

Ambient temperature:
Range: -20-60 degrees Celsius / -4-140 degrees Fahrenheit
Resolution: 0.1 degrees Celsius / 0.2 degrees Fahrenheit
Accuracy: ±1.0 degrees Celsius (0-45 degrees Celsius), ±1.5 degrees Celsius (-20-0 degrees Celsius, 45-60 degrees Celsius);
±2 degrees Fahrenheit (32-113 degrees Fahrenheit), ±3 degrees Fahrenheit (-4-32 degrees Fahrenheit, 113-140 degrees Fahrenheit)

Dew point temperature:
Range: -50-60 degrees Celsius / -58-140 degrees Fahrenheit
Resolution: 0.1 degrees Celsius / 0.2 degrees Fahrenheit
Accuracy: ±1.0 degrees Celsius (0-45 degrees Celsius), ±1.5 degrees Celsius (-500-0 degrees Celsius, 50-60 degrees Celsius);
±2 degrees Fahrenheit (32-113 degrees Fahrenheit), ±3 degrees Fahrenheit (-58-32 degrees Fahrenheit, 113-140 degrees Fahrenheit)