Extech RH490 - Precision Hygro-Thermometer

Highest 2% RH accuracy with Grains Per Pound (GPP) Display

Features:

• Less then 30 seconds of RH response time
• Water vapor in GPP
• Dual backlit display
• Simultaneous display of: Humidity/Temperature, Humidity/Dew Point or Humidity/Wet Bulb
• Slim design with rubberized side grips
• Data Hold and Min/Max functions