The Extech RH300 Digital Psychrometer measures air temperature (-4°F to 122°F), relative humidity (0-100%), wet bulb, and dew point (-90.4°F to 122°F).
Designed like a microprocessor, you get data hold, low battery indicator, auto power off, and memory (minimum, maximum) functions. Batteries are included.
The unique sensor cap design lets you simply twist the cap to close and protect the sensor during storage.
How to Read the RH300 Display:
The WB (Wet Bulb) temperature is NOT the true Fahrenheit temperature reading in the room. WB is a ratio between the DB (Dry Bulb) temperature and the RH (Relative Humidity).
The lower left hand side reading on the meter is the real temperature in the air. Though the display shows t1 and not F (for Fahrenheit).
|Warranty Information||One (1) year from the date of purchase on parts and labor|
|Thermo-Hygrometer Calculations||Dew Point, Rh, Temp, Wet Bulb|
|Thermo-Hygrometer RH Range||10 to 90%|
|Thermo-Hygrometer Temp Accuracy||± 1°F|
|Thermo-Hygrometer Temp Range||32° to 122°F|
|Thermo-Hygrometer RH Accuracy||+/- 3%|