EXTECH LT505 pocket-size autoranging Light Meter with wide light intensity ranges measuring up to 40,000Fc (400,000Lux) with high resolution to 0.01Fc (0.1Lux).
The LT40 LED light meter is useful for measuring and optimizing environmental light levels in a wide range of environments, including office buildings, manufacturing plants and warehouses, university campuses, schools, hospitals, and many other locations. Use of LED lighting is on the rise because it is more efficient to operate, it emits stable, high quality illumination, and the technology is dropping in price. Besides LED lighting, the LT40 can measure standard light sources fluorescent, metal halide, high pressure sodium and incandescent up to 400,000 lux (40,000 Fc).
EXTECH HD450 Light Meter measures from 0 to 40,000Fc and 0 to 400kLux with a 0.01Fc/0.1Lux resolution. In addition, the datalogger function can automatically store up to 16,000 readings or manually store/recall up to 99 readings.