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EXTECH Hygro Thermometer: Onboard, 7.8 in x 1.7 in x 1.3 in - Data Logging Temperature & Humidity Meters
EXTECHData Logging Temperature & Humidity Meters

EXTECH Hygro Thermometer: Onboard, 7.8 in x 1.7 in x 1.3 in

The EXTECH RH490 is a data logging temperature and humidity meter with onboard sensors, measuring 7.8 in x 1.7 in x 1.3 in and covering a temperature range of -22°F to 199°F. This EXTECH-branded instrument does not…

SKU 3G-OTH-178798

Brand
EXTECH
Item
Hygro Thermometer: Onboard, 7.8 in x 1.7 in x 1.3 in
Category
Data Logging Temperature & Humidity Meters
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Technical Specifications

EXTECH
Manufacturer Part Number
RH490
Calibration Certificate
Not Included
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EXTECH Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The EXTECH RH490 is a data logging temperature and humidity meter with onboard sensors, measuring 7.8 in x 1.7 in x 1.3 in and covering a temperature range of -22°F to 199°F. This EXTECH-branded instrument does not include a calibration certificate.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the EXTECH RH490 hygro thermometer used for?

The EXTECH RH490 is a data logging temperature and humidity meter used for monitoring environmental conditions in HVAC, cleanrooms, warehouses, and industrial storage. Its onboard sensor measures temperature from -22°F to 199°F and relative humidity, making it suitable for climate validation and quality control applications.

What are the specifications of the EXTECH RH490?

The EXTECH RH490 is a data logging temperature and humidity meter with onboard sensors. It measures 7.8 in x 1.7 in x 1.3 in and covers a temperature range of -22°F to 199°F. This EXTECH-branded instrument does not include a calibration certificate. The manufacturer part number is RH490.

Where to buy the EXTECH RH490 worldwide?

3G Electric supplies the EXTECH RH490 worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this data logging temperature and humidity meter for your facility.

How to use the EXTECH RH490 for data logging?

To use the EXTECH RH490, power on the unit and place it in the target environment. The onboard sensor logs temperature from -22°F to 199°F and humidity. For accurate readings, avoid direct sunlight and extreme airflow. Refer to the EXTECH manual for data retrieval and setup instructions.

Used in

Common applications for EXTECH
HVAC system diagnostics — EXTECH AN340 vane anemometer for air velocity and humidity measurement
Industrial machinery maintenance — EXTECH 461995 laser tachometer for RPM and surface speed checks
Food and beverage quality testing — EXTECH RF12 analog refractometer for Brix concentration measurement
Refrigerant leak detection — EXTECH RD350 heated diode leak detector for R-513A systems
Environmental monitoring — EXTECH RH490 data logging hygro-thermometer for temperature and humidity logging
Lighting inspection — EXTECH LT300-NIST light meter for illuminance measurement in workspaces

EXTECH 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.

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