Product Description
Extech RH490 Precision Hygro-Thermometer
Standard Equipment Includes:
- Instrument
- 9v Battery
- Instructions
- Carrying case
Highest 2% RH accuracy with Grains Per Pound (GPP) Display
- Less than 30 seconds of RH response time
- Water vapor in GPP
- Dual backlit display
- Simultaneous display of:
- Humidity/Temperature
- Humidity/Dew Point
- Humidity/Wet Bulb
- Slim design with rubberized side grips
- Data Hold and Min/Max functions
- Less than 30 second RH response time
- Water vapor in GPP (g/kg)
- Dual backlit display
- Simultaneous display of:
- Humidity or GPP (g/kg) plus Temperature
- Humidity or GPP (g/kg) plus Dew Point
- Humidity or GPP (g/kg) plus Wet Bulb
- Slim design with rubberized sides for better grip and for one hand operation
- Data Hold and Min/Max functions
- Auto power off with disable and low battery indicator
- Humidity: 0 to 100%RH
- Temperature (internal): -4 to 199°F (-20 to 100°C)
- Basic Accuracy: ±2%RH, ±1.8°F/1°C
- Max. Resolution: 0.1%RH, 0.1°F/°C
- Dewpoint: -22 to 199°F (-30 to 100°C)
- Wet Bulb: 32 to 176 °F (0 to 80°C)
- Absolute Humidity: 0 to 1120GPP (0 to 160g/kg)
- Dimensions: 7.8x1.7x1.3" (200x45x33mm)
- Weight: 7oz (200g)
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