Extech LT40 LED Light Meter

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 & warehouses, university campuses, schools, hospitals, and many other locations. OSHA regulates workplace lighting because illumination must be adequate for assigned tasks, and light meters are used to verify regulatory compliance, as well as state and local public safety codes and ordinances. 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).

The key features on the LT40 include: overload indication; maximum/average/minimum memory hold; data hold; auto range adjustment (to optimize accuracy and resolution); cosine and color-corrected measurements; auto power off (with disable function); 4000-count display; and tripod mount.

The LT40 comes with a built-in sensor with protective cover, two AAA batteries, storage pouch, and user manual.