Feature: 1. Portable lux meter features maximum 200,000LUX wide range, 0.1LUX/ 0.01FC high resolution, unit selection, automatic measuring range selection, and data hold function. 2. Adopts a silicon photo diode with filter, with CIE photopic (CIE human eye response curve) spectral response, mainly used in industrial/ laboratory/ planting and other places as professional light intensity instrument. 3. Digital LCD screen clearly displays illumination value and unit, greatly enhancing reading experience. Note: 20,000LUX range, reading x10; 100,000/ 200,000LUX range, reading x 100. 4. It supports automatic data recording function, including maximum and minimum values; supports unit selection of LUX/ FC, satisfying different requirements. 5. Compact and lightweight, non-slip and comfortable to hold, easy to use. Powered by 2 AAA batteries (not included), easy to install and replace batteries. Specification: Digital photometer with wide range is a professional light intensity instrument designed for industrial, lab, planting and more places. It features automatic range, automatic data recording, maximum/ minimum data, compact size and so on, very convenient and easy to use. Features: Portable lux meter features maximum 200,000LUX wide range, 0.1LUX/ 0.01FC high resolution, unit selection, automatic measuring range selection, and data hold function. Adopts a silicon photo diode with filter, with CIE photopic (CIE human eye response curve) spectral response, mainly used in industrial/ laboratory/ planting and other places as professional light intensity instrument. Digital LCD screen clearly displays illumination value and unit, greatly enhancing reading experience. Note: 20,000LUX range, reading x10; 100,000/ 200,000LUX range, reading x 100. It supports automatic data recording function, including maximum and minimum values; supports unit selection of LUX/ FC, satisfying different requirements. Compact and lightweight, non-slip and comfortable to hold, easy to use. Powered by 2 AAA batteries (not included), easy to install and replace batteries. Note:Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding. Specifications: Color: Black & Red Material: ABS Display: LCD Measuring Range: Max. 200,000Lux Spectral Response: CIE Photopic (CIE human eye response curve) Spectral Accuracy: f'1≤6% Cosine Response: f'2≤2% Accuracy: Calibrated to standard LED lamp at color temperature2856K Unit: FC/ LUX (1FC=10.76LUX) 1 Lux Resolution: ±4%±10 digits (＜10,000Lux), ±5%±10 digits (≥10,000Lux) 0.1 Lux Resolution: ±3%±10 digits (＜10,000Lux), ±4%±10 digits (≥10,000Lux) Repeatability: ±2% Photo Detector: One silicon photo diode with filter Power Supply: 2 * 1.5V AAA Battery (not included) Item Size: 160 * 60 * 25mm / 6.30 * 2.36 * 0.98in Item Weight (without battery): 100g / 3.53oz Package Size: 18.5 * 8.5 * 4.5cm / 7.28 * 3.35 * 1.77in Package Weight: 142g / 5.01oz Package List: 1 * Digital Lux Meter 1 * User Manual (English) Package List: 1 * Digital Lux Meter 1 * User Manual (English)