Sample Rate: ≥2 times/sec, Automatic and manual range select, Maximum, Minimum function, Data Hold and Peak Hold, Relative measurement (Zero), Unit conversion: FC/LUX, Display: 31/2 bit LCD display, maximum reading is 1999. And With analog bar display. Over load range tips: When the measured value exceeds the current range, the display will appear “1”/”FFFF”. Photo range: 20, 200, 2000, 20000, 200000 Lux, 20, 200, 2000, 20000 FC, Low power alarm, Auto Power off, Key voice indication, Battery time:> 200 hours, Battery: 9v DC, Accuracy: ±3% (According to the ordinary incandescent lamp when calibrated at 2854K), ±6% Other visible light source