• Usually ships in 3-5 business days



  • Range: Up tp 20,000Fc/Lux
  • Accuracy: ±5% of reading
  • Resolution: 0.01Fc/Lux
  • Relative mode indicates change in light levels
  • Peak mode capture highest reading
  • Utilizes precision photo diode and color correction filter
  • Cosine and color corrected measurements

What's in the Box

  • Remote light sensor
  • 12in (305mm) coiled cable (expands to 24in)
  • 9V battery
  • Protective sensor cover
  • Holster


The high resolution Extech LT300 light meter measures light intensity up to 20,000 Foot-candles or Lux. Utilizing a precision photo diode as well as cosine and color corrected measurements, the Extech LT300 light meter has a resolution of 0.01Fc/Lux with a standard accuracy of ±5% of reading.

The Extech LT300 light meter features a large backlit LCD display with an analog bargraph to display measurements. A relative mode indicates changes in light levels while data hold, peak hold, and MIN/MAX functions make it easy for users to access the information required.


This product can be used in the following applications: