The light meters are designed with separate light sensor probe which is composed by silicon photodiode with spectral response filter and cosine correction element. They provide high precision measurements on solar irradiance and various types of artificial lighting including led lights. Each meter is fully tested and calibrated in factory before delivery. With proper use, it will provide years of reliable service. Lc display 3-3/4 digital lcd (3999) with analog bar-graph Spectral response Cie photop?cie eye response cur, cosine correction Measurement range 0~400klx?0-40kfc Accuracy ± 3 ?calibrated at 2854 k with incandesce? ± 6% other visible light sources Sampling rate 4 times/second (digital display) Repeatability ±2% Photo electric detector Silicon photodiode with spectral response filter Peak hold Capture the peak light intensity of shortest 10âµs Low bat. Indication Appear when battery voltage is too low for working Data logger memory 32, 000 data Operation condition Temperature: -10 ~ 5c, humid?< 80%rh relative humidity Storage condition Temperatu -20 ~ 50 c, humid?< 80% relative humidity Dimension Main boy 160*58*33mm sensor prolem 102*60*25mm Weight Appr. 300g (including battery) Power supply 9v 6f22 or 9v iec 6lr61
