The Extech LT40 LED light meter is ideal for measuring and optimizing ambient lighting in a variety of environments, including office buildings, manufacturing facilities, warehouses, college campuses, schools, hospitals and many other applications. With OSHA mandating workplace lighting regulations, the LT40 enables verification of compliance with regulatory, state and local public safety requirements. The LT40 is capable of measuring LED lighting as well as standard light sources such as fluorescent, metal halide, high pressure sodium and incandescent lamps, up to 400,000 lux (40,000 Fc). The scope of delivery includes an integrated sensor with protective cover, two AAA batteries, a storage bag and a user manual.