Fast, stable and accurate response. Monitor light levels anywhere with fast, stable and accurate response. Results are easily read on the extra large LCD (1½" high, 38.1mm) with bar graph, low battery and over range indications. The color and cosine corrected sensor meets C.I.E. photopic spectrum. Will read LED light. Also features RS232 computer output, min/max, auto power off, external zero adjustment, hold function and a tripod back. Offers peak function and a unique and very useful ability to compensate for the different colors of tungsten, florescent, mercury and sodium lights, with the push of a button. The result is readings true to actual lighting conditions. Comes ready to use with a 9V battery, instructions, soft padded case with shoulder strap, and a detachable sensor with cover for easier replacement or repair. N.I.S.T. traceable certificate of calibration available. Meter Dimensions: 7¾" × 2¾" × 1¼" (197 × 70 × 32 mm) Weight: 10 oz (283 g).