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Features & Applications:
Extech's Model RH490 is a new Precision Hygro-Thermometer with Direct Digital Display of Grains per Pound (GPP). The unit is ideal for structural drying and water damage restoration, HVAC/R, plant maintenance, mold inspection and remediation. Extech's RH490 features 2% RH accuracy with a RH response time of less than 30 seconds.
Features:
- 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
- Complete with carrying case and 9V battery
Spec Summary:
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Humidity:
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0 to 100%RH |
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Temperature (internal):
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-4 to 199°F (-20 to 100°C) |
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Basic Accuracy:
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±2%RH, ±1.8°F/1°C |
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Max. Resolution:
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0.1%RH, 0.1°F/°C |
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Dewpoint:
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-22 to 199°F (-30 to 100°C) |
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Wet Bulb:
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32 to 176 °F (0 to 80°C) |
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Absolute Humidity:
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0 to 1120GPP (0 to 160g/kg) |
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Dimensions:
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7.8 x 1.7 x 1.3" (200 x 45 x 33mm) |
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Weight:
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7oz (200g) |
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