Extech RH490


Temp/Humdty Meter, 0 to 100% Rel Hum Rnge

RH490 386679
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ItemTemperature Humidity Meter
Relative Humidity Range0 to 100%
Humidity Accuracy+/-2%
Temp. Range (F)-22 Degrees to 199 Degrees F
Temp. Accuracy (F)+/-1.8 Degrees F
Wet Bulb Temperature Range32 Degrees to 176 Degrees F
Dew Point Range-22 Degrees to 199 Degrees F
Humidity Resolution0.1%
Temp. Range (C)-20 Degrees to 60 Degrees C
Temp. Accuracy (C)+/-2 Degrees C
Temp. Resolution (F)0.1 Degrees F
Temp. Resolution (C)0.1 Degrees C
DisplayDual LCD
Battery Type9V
Auto Power OffYes
Data HoldYes
Response TimeLess Than 30 sec.
Humidity Probe Range (Deg. F)32 Degrees to 122 Degrees F
Humidity Probe Range (Deg. C)0 Degrees to 50 Degrees C
Special FeaturesDisplays Grains of Water Per Pound
Includes Carrying Case, Instructions
Manufacturers Warranty Length1 yr.
Weight 1.520000


Temperature Humidity Meter0 to 100 Percent Relative Humidity Range, +/-2 Percent Humidity Accuracy, -22 Degrees to 199 Degrees F Temp. Range (F), +/-1.8 Degrees F Temp. Accuracy (F), 32 Degrees to 176 Degrees F Wet Bulb Temperature Range, -22 Degrees to 199 Degrees F Dew Point Range0.1 Percent Humidity ResolutionDisplay Dual LCDMemory Min/Max, Battery Type 9V, Auto Power Off Yes, Data Hold Yes, Response Time Less Than 30 sec.

Sling and Fixed-Probe Temperature/Humidity Meters
  • (G) Precision Temperature/Humidity with GPP
  • Built-in probe measures grains per pound (GPP) for quick assessment of air moisture content. Dual LCD. Feature min./max. memory, data hold, and Auto-Off. Include case and 9V battery.
  • Thermometers/Psychrometers

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