Buy on Amazon : http://www.amazon.com/gp/product/B0020A1E9O?tag=wayofcats-20
Ruby Electronics DT-1309 Professional Digital 40K FC Foot-Candle Meter 400K Lux Light Luxmeter
Over-range indication Electronics range selection auto ranging
Long life silicon photo diode inside Measurement rate15 times per second
4000 counts LCD display 41-segments Analog bargraph
Peak Hold Relative mode
Max and Data Hold Auto Power Off Low battery indication
