EXTESH RH390 Digital Psychrometer User Guide
User Manual
Extech RH390 digital psychrometer measures humidity, air temperature, dew point temperature and wet bulb temperature. Advanced features include Data Hold, Auto Power Off, and MAX/MIN reading.
EXTESH RH390 manuals
EXTESH RH390 Precision Psychrometer User Guide
User Manual
The Extech RH390 Precision Psychrometer is a precision hygrometer produced by Extech Corporation. It has a dual backlit display, can simultaneously display temperature, humidity, dew point, and wet bulb, and has a precision of ±2%RH with a response time of less than 30 seconds.