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  Home > Extech >

  Extech RH401 Digital Psychrometer + InfraRed Thermometer
  Extech RH401 Digital Psychrometer + InfraRed Thermometer


 
Digital Psychrometer + InfraRed Thermometer
Humidity, Wet bulb, Dew Point, Air Temperature plus IR for Non-contact Temperature measurements
  • Triple display with backlighting
  • Precision humidity capacitance sensor is retractable for protection during transportation and storage
  • Calculates T1 (IR Surface Temperature) - DP (Dew Point) differential


Item# Item Name Starts at Qty Add
EXT-RH401-CAL Extech RH401 33% and 75% RH calibration reference $54.99
EXT-RH401 Extech RH401 Digital Psychrometer + InfraRed Thermometer $189.99
EXT-RH405 Extech RH405 Digital Psychrometer + InfraRed Thermometer Kit $219.99
Check the items you wish to purchase, then click


Features:
Humidity, Wet bulb, Dew Point, Air Temperature plus IR for Non-contact Temperature measurements
  • Triple display with backlighting
    • View Air temp+RH+surface temp
    • View Dew Point+RH+surface temp
    • View Wet Bulb+RH+surface temp
  • InfraRed Thermometer with
    • Built-in laser pointer
    • 8:1 distance to target ratio
    • Adjustable Emissivity from 0.3 to 1.0
  • Precision humidity capacitance sensor is retractable for protection during transportation and storage
  • Calculates T1 (IR Surface Temperature) - DP (Dew Point) differential
  • Programmable Auto power off and Low battery indication
  • Over-range/under-range alert indicator
  • Built-in RS-232 interface for capturing readings on a PC
  • RH401 completer with 4 AAA batteries and carrying case
  • Optional RH405 kit includes meter, 33% and 75% calibration bottles, RS-232 cable, 4 AAA batteries and carrying case.
Applications:
  • Monitor Wet Bulb, Dew Point, Relative Humidity and Temperature in factories, clean rooms, offices, and greenhouses
  • Non-contact InfraRed surface temperature measurements in hard to reach areas such as heating and air conditioning duct
  • Humidity monitoring in schools, offices and manufacturing or storage areas
Specifications Range Max Resolution Basic Accuracy
Humidity 10 to 90%RH 0.1%RH ±3%RH
InfraRed Temperature -40 to 932°F (-40 to 500°C) 0.1° ±3%
Air Temperature -4 to 122°F (-20 to 50°C) 0.1° ±3%
Dew Point -90.4 to 122°F (-68.0 to 49.9°C)

Wet Bulb -6.9 to 122°F (-21.6 to 49.9°C)

Emissivity Adjustable 0.3 to 0.99

Field of View 8:1

Dimensions/ Weight 6.8x2.7x1.9” (175x70x50mm)/ 4.9oz (140g)

 



Accessories for this product...
Extech 407752 RS-232 PC cable & software for RH401
Starts at $49.99
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Extech 407752 RS-232 PC cable and software for RH401


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Reliability Direct, Inc.
1010 East Main Street
League City, TX 77573
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