Description
Measure humidity and temperature simultaneously with Extech's RH390 precision psychrometer. A dual-illuminated display can be toggled to show wet bulb and humidity, dew point and humidity, or temperature and humidity. This portable device records temperatures from -30 to 100°C (-22 to 199°F) and measures the full spectrum of relative humidity with an accuracy of ±2% between 20 and 90% RH. Includes carrying case and 9V battery.
Ref. HR390