Adjustable LCD backlight for clearly showing data, can displace Temperature & Humidity at the same time.
Humidity: 0 to 100% RH
Temperature: -20°C to 80 °C (-4°F to 176°F)
Dewpoint Temperature: -20°C - 80°C (-4°F - 176°F)
Wet Bulb Temperature: 0°C - 80°C (32°F - 176°F)

Humidity: ±3% RH
Temperature: ±0.9°F/±0.5°C (at 77°F/25°C)
Resolution: 0.01%RH, 0.01°F/0.01°C

One-Press Unit Switch 
Simple switch between Degrees Fahrenheit and degrees Celsius 
9V battery which is included. Device will power off automatically to save battery when not in use in several minutes

Fast response time
Only 10s response time.It can display accurate Tempe & Humidity.
Sensor type: A single chip relative humidity and tempe multi sensor module comprising a calibrated digital output.

Package Includes:
1 x Digital Humidity Temperature Meter
1 x 9V Battery
1 x use manual