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Lutron Precision Cup Vane Anemometer (AM-4257SD) with Data Logging

Model #: AM-4257SD
$399.95 $329.00

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Lutron Precision Cup Vane Anemometer (AM-4257SD) with Data Logging
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Category Anemometers-Air Flow

Lutron Cup Style Anemometer with Data Logging


  • Cup anemometer, designed especially for exterior air speed and temperature
  • Automatic temperature compensation for measurement and recording.
  • Type K and J temperature ports
  • Air velocity measurement units:
    • Mile/ h, miles per hour MPH
    • Knots. nautical miles per hour
    • m/ S, meters per second
    • Ft/ min, feet per minute FPM
    • Km/ h, kilometers per hour
  • Air temperature measures in either degrees Celsius or Fahrenheit
  • Type K and Type J thermocouple thermometer ports
  • Data Output RS-232 to USB PC computer interface
  • Real time SD memory card Datalogger with Built-in time and date stamp, sampling time can be set from 1 second to 3600 seconds
  • Data hold will freeze current reading
  • Recall minimum and maximum reading
  • Fold out easel back allowing meter to sit upright on a flat surface
  • Brass threaded tripod mount
  • Automatic temperature compensation


  • Air velocity range:
    • m/S: 0.9 to 35, 0.1 resolution (accuracy within 2% +0.2 m/S)
    • Km/h: 2.5 to 126.0, 0.1 resolution (accuracy within 2% +0.8 Km/h)
    • Knots: 1.4 to 68.0, 1 resolution (accuracy within 2% +0.4 Knots)
    • Ft/min: 144 to 6895, 0.1 resolution (accuracy within 2% +40 Ft/min)
    • MPH: 1.6 to 78.2, 0.1 resolution (accuracy within 2% +0.4 MPH)
  • Air temperature: 32 to 122F (0 to 50C) with 0.1 resolution
  • Air temperature accuracy is within: 1.5F (0.8C)
  • Sampling time: approximately 1 second
  • Operating Temperature (ambient): 32 F to 122 F
    NOTE most batteries are not rated for below -4 F or above 125F
  • Operating Humidity: less than 85% RH, non-condensing
  • Power supply: (6) AA alkaline batteries or optional 9 volt DC Adapter AP-9V110
  • Power current:
    • without SD card saving data and back-light off: 15mA DC
    • With SD card saving data and back-light off: 36mA DC
      Note: add 11mA DC when back-light is on
  • Weight (meter only): 12.1 ounces (347 grams)
  • Dimensions:
    • Meter: 7.1" x 2.9" x 1.9" (182 x 73 x 47mm)
    • Cup vane (3 cups with arm): 5.3" (135mm) diameter

Supplied with:


  • SD Card (from 1 to 16 GB)
  • AC to DC adapter AP-9V110
  • RS-232 cable UPCB-02
  • USB cable USB-01
  • Type K or Type J thermocouple probe
Search Category: Hardware > Tools > Measuring Tools & Sensors > Anemometers
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Category Anemometers-Air Flow
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