LUX is the amount of illumination that a lamp with a light intensity of one candle receives on a surface with an area of one square meter and a vertical distance of one meter. One foot candle (FC) is the amount of illumination received on a surface of one square foot that is one foot away from a lamp with one candle intensity.

Specifications:
Material: ABS
Range:
999.9, 99999, 19999 x10 LUX
99.9, 999.9, 19999 FC
Accuracy:
±3%+5LUX (calibration in accordance with ordinary LED lamp at 2854°K)
±6%+5LUX (other visible light sources)
Cosine Angle Deviation Characteristic: 30°±2%; 60°±6%; 80°±25%
Resolution:
LUX: FC: Sensors: Digital light probe and filter
Operating Environment: -10~50℃, maximum relative humidity of 80%, indoor altitude Storage Environment: -10~50℃, maximum 70% relative humidity.
Sampling Speed: About 8 times per second
Incident Angle: 120 degrees
Repeat Test: ±2%
Spectral Range: 400~700nm
Power Supply: 2 * 1.5V AAA (LR03) battery (Not included)
Item Size: 190 * 57 * 32mm / 7.48 * 2.24 * 1.26in
Item Weight: 160g / 5.64oz
Package Weight: 271g / 9.56oz
Package Size: 22 * 11 * 4.5cm / 8.66 * 4.33 * 1.77in

Package List:
1 * Illuminator
1 * Storage Bag
1 * User Manual (English)