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Extech RH401 Digital Psychrometer + InfraRed Thermometer

Item #:
EXT-RH401
Brand:
Extech
Extech RH401 Digital Psychrometer + InfraRed Thermometer
$199.99
Qty

Discontinued

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Extech RH401 Digital Psychrometer + InfraRed Thermometer

Extech RH401 Digital Psychrometer + InfraRed Thermometer

$199.99

Discontinued


RH401 Digital Psychrometer + InfraRed Thermometer by Extech

Features

  • 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 complete 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
  • Humdity monitoring in schools, offices and manufacturing or storage areas
General Specifications
Display Triple LCD with backlight
Sensor Type Humidity: Capacitance sensor; Temperature (air): Thermistor
Dew Point -90.4 to 122.0°F (-68 to 50°C) (calculated from humidity and temperature measurements)
Wet Bulb -6.9 to 122.0°F (-21.6 to 50°C) (calculated from humidity and temperature measurements)
IR Emissivity Adjustable from 0.3 to 0.99
IR Spot/Distance Ratio 8:1
IR Response Time 0.5 seconds
Operating Conditions -4 to 122°F (-20 to 50°C); < 99% RH non-condensing
Storage Conditions -40 to 185°F (-40 to 85°C); <99% RH non-condensing
Power Supply 4 x 1.5V 'AAA' batteries or AC adaptor
Battery Life approx. 150 hours (laser inactive); 30 hours (laser active)
Dimensions / Weight 6.8x2.7x1.9" (175x70x50mm); 4.9 oz. (140g)

Range Specifications
Function
Range and Resolution
Accuracy
Humidity
0.0 to 100.0% RH
±3% RH (10 to 90%)
Temperature (Air)
-4.0 to 122.0°F (-20 to 50°C)
±1.8°F (±1°C)
Temperature (InfraRed)
(@25°C ±5°C)
-4 to 842°F (-20 to 450°C)
±3% reading or ±3°C/6°F whichever is greater
-40 to -4°F, 842 to 932°F
-40 to -20°C, 450 to 500°C
±4% reading or ±4°C/8°F whichever is greater

Questions & Answers