Item Type: Luminometer Material: ABS Color: As shown in the picture Product Model: LX1010B Display: 3-1/2 digits 18mm LCD Measuring Range: 0 Lx~50000Lx Sampling Rate: 2.0 times/sec Accuracy: 4%rdg0.5%f.s Photoreceptor: Light diode with filter lens Working Environment: 0~40 (32H~104H) 0~70%Rh Storage Environment: -10~50 (14H~140H) 0~80Rh Battery: 1 x 9V 6F22 battery (not included)1It has a reading lock function, which locks the measured value and facilitates the reading of the measured value. 2LX?1010B measuring range is 0Lx~50000Lx, the product has high measurement accuracy and quick response. 3Digital display large screen, screen display symbol and unit, easy to read, and can be automatically returned zero. 4Powered by a 9V battery(not included), this unit has low energy requirements and will last you for a long time out in the field without needing a change. 5With a fast sampling rate of 2. 0 times/sec, you'll never be stuck waiting for your reading to come through. 1 x Luminometer (Battery Not Included) 1 x Instruction Manual