EXTECH RH490 - Precision HYGRO-Thermometer with GPP (Grains per Pound)

★★★★★ 4.7 75 reviews

$90.00
Price when purchased online
Free shipping Free 30-day returns

Sold and shipped by www.bitbiashara.com
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here.
$90.00
Price when purchased online
Free shipping Free 30-day returns

How do you want your item?
You get 30 days free! Choose a plan at checkout.
Shipping
Arrives Apr 21
Free
Pickup
Check nearby
Delivery
Not available

Sold and shipped by www.bitbiashara.com
Free 30-day returns Details

Product details

Management number 214773029 Release Date 2026/04/12 List Price $36.00 Model Number 214773029
Category
  • High-Accuracy Humidity Readings – Measures relative humidity from 0 to 100% with ±2% accuracy and 0.1% resolution—ideal for critical HVAC, restoration, and lab monitoring.
  • Simultaneous Dual Backlit Display – View humidity or water vapor (GPP or g/kg) alongside temperature, dew point, or wet-bulb readings—enhanced clarity in any lighting.
  • Fast 30-Second Response – Rapid humidity stabilization ensures timely, reliable data even in dynamic environments.
  • Convenient Data-Hold & Min/Max Functions – Hold fluctuating readings or review peak/minimum values; plus auto power-off with disable and low-battery alert for long battery life.
  • Slim, Ergonomic Design – Rubberized sides ensure a secure one-hand grip; includes carrying case and 9V battery for field-ready portability.
UPC 793950444900
Color Green
Voltage 9 Volts
Brand Name Extech
Unit Count 1.0 Count
Item Length 7 Inches
Item Weight 0.2 Kilograms
Manufacturer Extech
Mounting Type Surface Mount
Battery Description 1 x 9V battery
Included Components Complete with carrying case and 9V battery
Temperature Accuracy 1.8
Warranty Description 1 Year
Upper Temperature Range 93 Degrees Celsius
Global Trade Identification Number 00793950444900

Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Customer ratings & reviews

4.7 out of 5
★★★★★
75 ratings | 31 reviews
How item rating is calculated
View all reviews
5 stars
86% (65)
4 stars
2% (2)
3 stars
1% (1)
2 stars
1% (1)
1 star
10% (8)
Sort by

There are currently no written reviews for this product.