PHT-771 Psychrometer
  • PHT-771 Psychrometer
    Determine temperature and humidity
    • Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature
    • Wet bulb measurements without slinging
    • Calculates T1-T2 differential (Air Temperature-External Probe Temperature) using optional probe
    • Unique sensor cap design twists to closed position for protection during storage
    • Switchable °F/°C temperature units with 0.1° resolution
    • Data Hold freezes current reading on display
    • Max/Min readings
    • Auto Power off to save battery life
    • Complete with 2 AAA batteries

    The PHT-771 Digital Psychrometer simultaneously displays %RH, temperature as well as dew point, web bulb or probe temperature. It calculates T1-T2 differential with the Thermistor Temperature Probe (sold separately). The handheld PHT-771 hygro-thermometer psychrometer, weighing only 3.3 oz. (95g), has a basic accuracy of 0 to 100%RH (±3%RH) for humidity and ±1.8°F (±1°C) for internal and external temperature.

    Other features of the PHT-771 hygro-thermometer include data hold, auto power off, and MAX / MIN readings. This psychrometer can also calculate the T1-T2 differential using the optional probe and T2-Dew Point.

    The PHT-771 hygro-thermometer psychrometer comes ready to operate with two AAA batteries. Simply twist sensor cap for protection in storage.

    Technical Specifications

    HUMIDITY RANGE AND RESOLUTION

    0.0 to 100.0% RH

    HUMIDITY ACCURACY

    ±3% RH (10 to 90%) @ 23°C

    TEMPERATURE RANGE AND RESOLUTION

    -4.0 to 122.0°F (-20 to 50°C)

    TEMPERATURE ACCURACY

    ±1.8°F (±1°C)

    DISPLAY

    Triple LCD

    SENSOR TYPE

    Humidity: Precision capacitance sensor
    Temperature: Thermistor

    RESPONSE TIME

    60 seconds typical

    DEW POINT

    -90.4 to 122.0°F (-68 to 50°C) (calculated from RH and Air temperature measurements)

    WET BULB

    -6.88 to 122.0°F (-21.6 to 50°C) (calculated from RH and Air temperature measurements)

    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

    2 x 1.5V ‘AAA’ batteries

    BATTERY LIFE

    Approx. 80 hours

    SIZE / WEIGHT

    7 x 1.9 x 1” (178.5 x 48.8 x 25.2mm); 4.9 oz. (140g)

    What's Included

    No other accessories included.

    Downloads

    User Manuals

    Filename
    Language
    Release Date
    Size


    English
    2007-03-19
    582 KB

    Data Sheets

    Filename
    Language
    Release Date
    Size


    English
    2009-01-26
    34 KB

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