EXTECH Digital Psychrometer

One instrument measures wet bulb, dew point and temperature.

Simultaneously displays relative humidity and temperature as well as dew point, wet bulb or probe temperature.
Calculates T1-T2 differential with Thermistor Temperature Probe (sold separately). Simply twist sensor cap for protection in storage. Data hold maintains current reading on display. Features maximum/minimum readings and auto-off. The Digital Psychrometer includes two AAA batteries.
Digital Psychrometer Kit includes the digital psychrometer, thermistor temperature probe, 33 and 75% calibration bottles and a carrying case.