Extech Instruments / FLIR Systems - RH390 - Extech RH390 Hygro-Thermometer, Precision Psychrometer, 2% Accuracy, Dual Display, Data Hold

  • MFR SKU: RH390
  • ITEM #: 3938744
  • 0 Reviews / 0 Questions
Lists At: $455.85 You Save: $189.81
41.64 % OFF
$266.04
Stock Status: Low Stock

ITEM #: 3938744
  • 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


Measure humidity and temperature simultaneously...
ITEM #: 3938744
  • 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


Measure humidity and temperature simultaneously with the RH390 Precision Psychrometer from Extech. A dual-illuminated readout can be alternated to display wet bulb and humidity, or dew point and humidity, or temperature and humidity. This handheld device registers temperatures from -22 degrees to 199 degrees F (-30 degrees to 100 degrees C) and measures the full spectrum of relative humidity with ±2% accuracy between 20 and 90% RH. Complete with carrying case and 9V battery.
Read More >>

Extech Instruments / FLIR Systems - RH390 - Extech RH390 Hygro-Thermometer, Precision Psychrometer, 2% Accuracy, Dual Display, Data Hold

  • Item #: 3938744
  • MFR SKU: RH390
  • Max RH Range (%): 100
  • RH Accuracy: 2% RH RH Resolution (%): 0.1% Min Temperature ( F): -22
  • Min Temperature ( C): -30
  • Max Temperature ( F): 199
  • Max Temperature ( C): 100
  • Temperature Accuracy: 1.8F (1.0C) Temperature Resolution: 0.1
  • Wet Bulb: Yes
  • Response Time: 30 seconds Display Type: Dual LCD Battery: 9V battery (1) Height (in): 7 3/4
  • Width (in): 1
  • Depth (in): 1 1/4
  • Description: Precision Thermohygrometer, 0 to 100% RH/, -22 to 199F

There are no questions about this product yet. Be the first to ask a question.

0 out of 5 stars
5 Star
0 %
4 Star
0 %
3 Star
0 %
2 Star
0 %
1 Star
0 %

Review this product

Tell us about your personal experience

Recently Viewed Items