EXTECH RH390 Data Logging Temperature & Humidity Meter
The EXTECH Psychrometer: Onboard (MPN RH390) is a data logging temperature and humidity meter that measures ambient temperature, dew point, relative humidity, and wet bulb temperature. It has a temperature range of…
SKU 3G-OTH-178802
Also listed as: RH 390 · RH-390
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The EXTECH Psychrometer: Onboard (MPN RH390) is a data logging temperature and humidity meter that measures ambient temperature, dew point, relative humidity, and wet bulb temperature. It has a temperature range of -22°F to 199°F and does not include a calibration certificate.
Frequently Asked Questions
What is the EXTECH RH390 psychrometer used for?
The EXTECH RH390 psychrometer measures ambient temperature, dew point, relative humidity, and wet bulb temperature. It is used by HVAC technicians, plant engineers, and maintenance professionals for environmental monitoring, air quality assessment, and climate control in industrial and commercial facilities.
What are the specifications of the EXTECH RH390?
The EXTECH RH390 measures ambient temperature, dew point, relative humidity, and wet bulb temperature. Its temperature range is -22°F to 199°F. The device does not include a calibration certificate. It is a data logging temperature and humidity meter from EXTECH.
Where to buy the EXTECH RH390 worldwide?
You can source the EXTECH RH390 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this data logging psychrometer.
How to use the EXTECH RH390 for wet bulb temperature readings?
To use the EXTECH RH390, power on the device and select the measurement mode for wet bulb temperature. Hold the sensor in the environment to be measured, allowing it to stabilize. The onboard display shows the wet bulb reading alongside ambient temperature, dew point, and relative humidity.
Used in
Common applications for EXTECHEXTECH Products
3G Electric supplies EXTECH data logging temperature & humidity meters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.