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RH350

Extech Dual Input Hygro-Thermometer Psychrometer

Extech Instruments
RH350
Extech Dual Input Hygro-Thermometer Psychrometer, Psychrometer with two Type K inputs for Superheat plus memory
  • Superheat differential measurements: T1-T2, Air-T1, T1-Dewpoint
  • Dual Type K external temperature probe input
  • Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or External Probe Temperatures
  • Built-in RS-232 interface (optional RS-232 cable) - uses Windows® Hyperterminal to download data to a PC
  • Memory stores up to 99 data records
  • Complete with two Type K bead wire temperature probes and 4 AAA batteries
    • RH390

    Extech Precision Psychrometer

    Extech Instruments
    RH390
    Extech Precision Psychrometer, Highest 2% RH accuracy with fast 30 seconds Response Time
  • Fast response time (<30 seconds)
  • Dual backlit display
  • Simultaneous display of: Humidity/Temperature, Humidity/Dew Point or Humidity/Wet Bulb
  • Data Hold and Min/Max functions
    • RH401

    Extech Digital Psychrometer + InfraRed Thermometer

    Extech Instruments
    RH401
    Extech Digital Psychrometer + InfraRed Thermometer, Humidity, Wet bulb, Dew Point, Air Temperature plus Non-contact IR Temperature
  • Triple display with backlighting
  • Displays Air temp+RH+surface temp or Dew Point+RH+surface temp or Wet Bulb+RH+surface temp
  • Built-in InfraRed Thermometer with laser pointer and 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
    • RH490

    Extech Precision Hygro-Thermometer

    Extech Instruments
    RH490
    Extech Precision Hygro-Thermometer, Highest 2% RH accuracy with Grains Per Pound (GPP) Display
  • Less then 30 seconds of RH response time
  • Water vapor in GPP
  • Dual backlit display
  • Simultaneous display of: Humidity/Temperature, Humidity/Dew Point or Humidity/Wet Bulb
  • Slim design with rubberized side grips
  • Data Hold and Min/Max functions

      

    • RH520A

    Extech Humidity+Temperature Chart Recorder with Detachable Probe

    Extech Instruments
    RH520A
    Extech Humidity+Temperature Chart Recorder with Detachable Probe, Graphical datalogger for Humidity/Temperature measurements and Dew Point calculation
  • Simultaneous numerical and graphical display of Humidity and Temperature readings, plus Time and Date
  • Measures Humidity (10 to 95%RH) and Temperature (-20.0°F to 140.0°F) plus calculates Dew Point
  • Basic accuracy 3%RH, 1.8°F/1°C
  • Large dual graphical LCD displays with adjustable vertical and horizontal TAC resolution
  • Internal memory records up to 49,000 data points and can be transferred to a PC via RS-232 serial port for further data analysis
  • LCD indicates percentage of memory remaining