|Country of Origin||-|
|Dimension (L x W x H)||200 x 45 x 33 mm|
Extech RH490 Precision Hygro-Thermometer. This device measures Humidity, Air Temperature, Dew Point temperature, Wet Bulb temperature and Grains of Water Vapor per Pound of Air. Advanced features include Data Hold, Auto Power Off, and MAX/MIN reading. This meter is shipped fully tested and calibrated and with proper use will provide years of reliable service.
Approx. 24 hours battery life
9 Volt Battery
|Operating Conditions||32 to 122oF (0 to 50oC); < 80% RH non-condensing|
|Storage Condition||-40 to 185oF (-40 to 85oC); <99% RH non-condensing|