MESTEK TH10 Temperature Humidity Meter High Precision Digital Psychrometer with Ambient, Relative Humidity, Dew Point, Wet Bulb Thermometer
Accurately measure ambient temperature, relative humidity, wet bulb, dew point temperature
USING TIPS:
1. Long press the Power Button for 2 seconds to turn on the device, and short press to turn off.
2. Start the normal temperature and humidity environment measurement mode by default after start-up.
3. Short press the "SEL" button to switch DP (dew-point temperature) measurement mode, and short press the "SEL" button again to switch WB (wet-bulb temperature) measurement mode.
4. Long press the "SEL" button to convert between °C and °F.
5. The backlight automatically lights up by pressing any button, and automatically turns off after 30 minutes.