Extech RH390 Precision Dual Display Hygro Thermometer Psychrometer

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Price: $179.99 $179.00   

Product Feature

• Measures relative humidity from 0 to 100% and temperature from -4 to 140 � F (-20 to 60 � C)
• Accuracy ±2% from 20% to 90%; � 1.8� F (±1°C)
• Dual display of humidity and temperature or humidity and dew point or humidity and wet bulb
• Capacitance sensor responds under to humidity changes in under 30 seconds
• Slim design with rubberized ides for better grip

Product Description

The Extech precision humidity meter features simultaneous displays of humidity/temperature, humidity/dew point or humidity/wet bulb on its display. Resolution: 0.1%RH, 0.1deg F/deg C, Case Included: Yes, Battery Included: Yes, Functions (qty.): 6, Style: Nonpenetrating sensor, Display Type: Dual display, Auto On/Off: Yes, Accuracy: ±2%RH, � 1.8deg F/1deg C, Dimensions L x W x H (in.): 7 13/16 x 1 11/16 x 3, Battery Type: 9V, Low Battery Indicator: Yes, Backlit Display: Yes

Extech RH390 Precision Dual Display Hygro Thermometer Psychrometer Review

This unit is portable and reliably accurate. I use it for verifying real-time temperature & dew-point data from my Davis Vantage Vue weather station and the Automated Surface Observing System (ASOS) at the airport. However, I wish the unit uses double "A" batteries instead of 9-volt battery.

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