Accurately displays light level in terms of Fc or Lux over three ranges: Fc (0-200, 0-2000 and 0-5000Fc) and Lux (0-2000, 0-20000, 0-50000Lux). Resolution of 0.1Fc or 1Lux with 5 percent accuracy. Select fast (1 second) or slow (2 seconds) response/ Monitor light levels using outputs. 1mV per count analog output for capturing readings to a recorder. Utilizes precision photo diode and color correction filter. Cosine/color corrected. Dimensions: 6.4 x 2.8 x 1.2 in. (163 x 70 x 30mm). Weight: 7.8oz (220g). Complete with 9V battery.