Extech Instruments / FLIR Systems - HD450 - Extech HD450 Light Meter/Datalogger, Up to 40000Fc/400KLux, 5% Accuracy, Data Hold, Large Display

  • MFR SKU: HD450
  • ITEM #: 1959015
  • 0 Reviews / 0 Questions
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ITEM #: 1959015
  • Automatically stores up to 16, 000 readings or manually store/recall up to 99 readings
  • Large backlit LCD display with 40-segment bar graph
  • Wide range to 40, 000Fc or 400, 000 Lux
  • Cosine and color corrected measurements
  • Utilizes precision silicon photo diode and spectral response filter
  • Peak mode (10mS) captures highest reading
  • Relative mode indicates change in light levels
  • Min/Max and Data Hold
  • Backlight for readings...
ITEM #: 1959015
  • Automatically stores up to 16, 000 readings or manually store/recall up to 99 readings
  • Large backlit LCD display with 40-segment bar graph
  • Wide range to 40, 000Fc or 400, 000 Lux
  • Cosine and color corrected measurements
  • Utilizes precision silicon photo diode and spectral response filter
  • Peak mode (10mS) captures highest reading
  • Relative mode indicates change in light levels
  • Min/Max and Data Hold
  • Backlight for readings in low light levels
  • Heavy Duty rugged double molded housing
  • Built-in USB port


The HD450 Light Meter measures from 0 to 40, 000Fc and 0 to 400kLux with a 0.01Fc/0.1Lux resolution. Features: 5% accuracy, Peak mode (10µs), Relative mode, Min/Max, Data Hold, backlit LCD display with 40-segment bar graph, and a rugged double molded housing. In addition, the datalogger function can automatically store up to 16, 000 readings or manually store/recall up to 99 readings. Comes complete with light sensor with 3ft (1m) cable and protective cover, software with USB cable, hard carrying case and 9V battery.
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Extech Instruments / FLIR Systems - HD450 - Extech HD450 Light Meter/Datalogger, Up to 40000Fc/400KLux, 5% Accuracy, Data Hold, Large Display

  • Item #: 1959015
  • MFR SKU: HD450
  • Specifications:
  • Display: 4000 count LCD display with 40 segment bargraph
  • Ranging: Four ranges, manual selection
  • Over Range Indication: LCD displays 'OL'
  • Spectral Response: CIE photopic (CIE human eye response curve)
  • Spectral Accuracy: V? function (f'1 ≤ 6%)
  • Cosine Response: f'2 =2%; Cosine corrected for angular incidence of light
  • Measurement Repeatability: ± 3%
  • Display Rate: Approximately 750 msec for digital and bargraph displays
  • Photo Detector: Silicon photo-diode with spectral response filter
  • Operating Conditions Temperature: 0 to 40° C (32 to 104° F); Humidity:< 80%RH
  • Storage Conditions Temperature: (-10 to 50° C (14 to 140° F); Humidity:< 80%RH
  • Meter Dimensions: 170 x 80 x 40mm (6.7 x 3.2 x 1.6")
  • Detector Dimensions: 115 x 60 x 20mm (4.5 x 2.4 x 0.8")
  • Weight: Approx. 390g (13.8 oz.) with battery
  • Sensor Lead Length: 1m (3.2')
  • Low Battery Indication: Battery symbol appears on the LCD
  • Power Supply: 9V battery
  • Battery Life: 100hrs (backlight off)

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