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Extech RH300 Digital Psychrometer
Product Highlights
- Humidity range: 1%-100%
- Humidity accuracy: +/-3% Rh
- Temperature range:-4°-to-122°F
- Temperature accuracy: +/-1.8°F
- Measures dew point
Return Policy 
Shipping Policy We pay the shipping charge, including hazardous material fees, on this item. There's no catch. No "buy this to get that" requirement.
Note: If your order contains items that are not eligible for free shipping, your order total will include our competitive shipping rates for those non-eligible items only. This shipping policy only applies to orders shipped within the Contiguous U.S.
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Free Technical SupportProduct Description
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.
Features:
- Displays:
- Dew point (-90.4°F to 122°F)
- Temperature (-4°F to 122°F)
- Wet bulb
- Relative humidity (0-100%)
- Min/max memory
- Data hold
- Auto power off
- F/C switch
- Pocket clip
- Low battery indication
Comes with:
- Batteries
- Protective cap with pocket clip
Usage
How to Read the RH300 Display:
- At the top of the screen, you will see the RH (Relative Humidity)
- At the bottom left, you will see t1 or DB (Dry Bulb, which is actually the Ambient Room Temperature)
- At the bottom right, you will see WB (Wet Bulb Temperature) and then F (Fahrenheit)
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).
Technical Specifications
| Brand | Extech |
|---|---|
| Thermo-Hygrometer Temp Accuracy | ± 1°F |
| Category | Thermo-Hygrometer |
| Condition | new |
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Special orders and drop-ship products that ship directly from the manufacturer do not qualify for our satisfaction guarantee and are not eligible for return, regardless of condition. Defects or damages must be reported within 48 hours of receipt in order to receive a replacement. Once placed, these orders cannot be canceled.Return policy
