Features:Mini lux meter with stable, safe and reliable measurement.Wide measurement range 0-100,000 lux with switchable measuring unit of Lux or FC.MAX / MIN / Data Hold functions, high accuracy.LCD display easy for reading.Storage 50 data and delay logging function(1 to 60 seconds selection).The illuminometer has compact size and light weight, thus you can hold and carry it conveniently.Widely used for monitoring light intensity in homes, laboratories, office, schools, indoor farming, etc.Specifications:Color: Black redMaterial: ABS plasticDisplay: 3-1/2 digit LCD display, Max reading 1999.Measuring Range: 0-100,000 lux(20000Lux range reading x10; 100,000Lux range reading x100)Resolution: 200Lux: 0.1Lux; another range: 1LuxAccuracy:3% rdg 10dgts(10,000 lux)(Calibrated to standard incandescent lamp at color temperature 2856K.)Photoreceptor: Photodiode attached filterSpectral Response: CIE photopic.(CIE human eye response curve)Spectral Accuracy: f'16%Cosine Response: f'22%Temperature Characteristic: 1%/ Sample Rate: 2times/SRepeatability: 2%Data Hold Function: YesMax/MIN Record: YesPower Supply: 2 * 1.5V AAA Battery (NOT Included)Item Size: Approx. 185 * 55 * 30mm / 7.28 * 2.16 * 1.18inItem Weight: Approx. 156g / 5.52ozPackage Weight: Approx. 274g / 9.68ozPackage Size: Approx. 22 * 9.5 * 5.5cm / 8.66 * 3.74 * 2.16inPackage List:1 * Digital Lux Meter1 * Protection Bag1 * User Manual(English)