Monitor light levels anywhere with fast, stable and accurate response. Results are easily read on the extra large digits (⅞" high, 22mm) that also indicates when the battery is low or the reading over range. The color and cosine corrected sensor meets C.I.E. photopic spectrum. Will read LED light. Also features an external zero adjustment, hold function and a tripod back. Comes ready to use with soft padded case and shoulder strap, instructions, detachable sensor with cover, and a 9V battery. N.I.S.T. traceable certificate of calibration available.