Extech Digital Light Intensity Lux Meter - LT300

In stock

The extech 3- Range lux meter has a wide range to 20,000Fc or 200,000 Lux with high resolution to 0.01 Fc/Lux.

Extech Digital Light Intensity Lux Meter  - LT300


  • Wide range to 20,000Fc or 200,000 Lux with high resolution to 0.01 Fc/Lux
  • Relative mode indicates change in light levels, peak mode captures highest reading
  • Remote light sensore on 12" (305mm) coiled cable - expandable to 24"
  • Utilizes precision photo diode and color correction filter
  • Large LCD display with analog bargraph
  • Backlight for readings in low light levels
  • Complete with 9V battery, light sensor with protective cover, protective holster, and pouch case


The Extech LT300 Digital Light Meter measures light level (illuminance) to 200,000 Lux (20,000 Fc). The LT300 offers a backlit display, MAX/MIN, Data Hold, Relative, Peak, and Reset features. This instrument is shipped fully tested and calibrated and, with proper use, will provide years of reliable service.

Ranges and Resolution Accuracy

Lux: 40.00, 400.0, 4000, 40.00k, 200.0kLux ± (5% Rdg + 0.5% Full Scale)

Foot candle (Fc): 40.00, 400.0, 4000, 20.00kFc ± (5% Rdg + 0.5% Full Scale)

General Specifications

  • Display Multi-function 3-3/4 (3999) digit LCD with Bargraph indicator
  • Over range indication LCD displays ‘OL’
  • Spectral response CIE photopic (CIE human eye response curve)
  • Measurement Repeatability ±2%
  • Temperature coefficient ±0.1% per oC
  • Sampling rate 13.3 times per second (bargraph); 1.3 times per second (digital
  • display)
  • Photo detector Silicon photo-diode with spectral response filter
  • Peak Hold Capture light peaks to 10μS
  • Operating conditions Temperature: 32 to 104oF (0 to 40oC); Humidity: < 80% RH
  • Storage conditions Temperature: 14 to 140oF (-10 to 50oC); Humidity: < 80% RH
  • Dimensions 6.5 x 3.0 x 1.7" (165 x 76 x 43mm)
  • Weight Approx. 14.2 oz. (403g) with battery installed
  • Low battery indication “ ” appears on the LCD
  • Power supply 9V battery

 Unit ship weight: 3Lbs

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