Features: The digital meter provides precise measurement of illuminances and brightness, ensuring accurate results everytimes. This light meter not only measures illuminances and brightness but also allows for the measurement of color temperature, color renderingindex, and other related parameters, providing comprehensive optical information. For photographers, lighting engineers, and researchers, this light meter is designed to meet the needs of different users in photography, lighting engineering projects, and scientific experiments. Whether it's for photographyshoots, lighting engineering projects, or scientific laboratory experiments, this light meter offer accurate measurements of illuminances and brightness, enabling users to make informed decisions. With its compact size and easy to use design, this light meter can be conveniently carried around and operated by anyone. Its large display screen ensures clear and readable measurement results. Specifications: Material:ABS, Electronic Component Size:Approx.168x59x34mm/6.61x2.32x1.33inch Size:Approx.130x59x34mm/5.11x2.32x1.33inch Display screen size: 34x31mm/1.33x1.22inch Measuring range: 0.1~200000LUX/0.01 ~ 20000FC Illuminances display: four-digital display, maximum1999. Sensors: digital illumination probeand filter. Sampling rate: 2 times/second Incident angle: 120 degrees Repeat test: 2% Spectralrange: 400~ 700nm Automaticshutdown: 15 minutes (manualshutdown) Operating environment: -10~50℃, maximumrelative humidity of 80%, Indoor altitude< 2000m Storage environment: -10~50℃, maximum70% relative humidity (take out the battery). Conductors length: 1m Weight: about 150g/165g (excluding battery) Power supply: 2x1.5AAA (R03/LR03) Package Includes: 1x Lightmeter note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.