Ruby Electronics DT-1301 Digital LCD Lux Foot-candle Luxmeter Light Meter Display: 0 - 1999 COUNTS ; Easy to use with pocket size and light weight 4 digit LCD display with LUX, fc, LOBAT, MAX, HOLD indication ; Accurately display light level in terms of Foot Candles(Fc) or LUX over wide range Measures from 0 to 50000 Lux/Fc in four ranges with resolution 0.1 Lux/Fc PHOTO DECTECTOR: ONE SILICON PHOTO DIODE WITH FILTER ; PHOTO DECTECTOR LEAD LENGTH: 150cm (approx.) Photo Detector Dimensions: 115X60X27mm ; Dimensions:188X64.5X24.5mm Weight : 160g