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.