Extech RH350 Superheat Psychrometer

Extech SuperHeat Psychrometer measures humidity, wet bulb, dew point, air temperature and temperature from an external probe. Its memory stores up to 99 data records. Retrieve minimum/maximum readings with data, time and average function. Features a real-time clock. Backlight on triple display is easy to read. Sensor cap twists to close for secure storage. Data hold freezes current reading on display. Power off saves battery life. SuperHeat Psychrometer includes two type K bead wire temperature probes and 4AAA batteries.