The Extech RH300 hygro-thermometer psychrometer offers simultaneous display of %RH, temperature, and dew point or wet bulb. An external sensor is also available for probe temperature readings. The handheld Extech RH300 hygro-thermometer psychrometer, weighing only 3.3 oz. (95g), has a basic accuracy of 0 to 100%RH (±3%RH) for humidity and ±1.8°F (±1°C) for internal and external temperature.
Other features of the Extech RH300 hygro-thermometer psychrometer include data hold, auto power off, and MAX / MIN readings. This Extech psychrometer can also calculate the T1-T2 differential using the optional probe and T2-Dew Point. The Extech RH300 hygro-thermometer psychrometer comes ready to operate with two AAA batteries.
