Extech HD450 Datalogging Heavy Duty Light Meter

HD450 - Overview

• Features:

  • 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
   

• 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)
   

• Item Includes:

  • 1x Extech HD450 Datalogging Heavy Duty Light Meter
  • 1x USB with software included