1、It is equipped with photosensitive parts and is made of high-quality materials for better sensitivity 2、Soft silicone button for a good feel and safer and more comfortable operation 3、High-definition LCD display with clear and accurate readings 4、A bracket on the back for easy support of the instrument for easy reading 5、Suitable for home bedroom illuminance measurement, stage, hotel illuminance measurement, conference room, sports occasions, etc Features: It is equipped with photosensitive parts and is made of high-quality materials for better sensitivity. Soft silicone button for a good feel and safer and more comfortable operation. High-definition LCD display with clear and accurate readings. A bracket on the back for easy support of the instrument for easy reading. Suitable for home bedroom illuminance measurement, stage, hotel illuminance measurement, conference room, sports occasions, etc. Specifications: Condition: 100% Brand New Material: Plastic Display:3-1/2 digit LCD with a maximum reading of 1999 Measuring range: 200,2000,20000,200000LUX (20000LUX range reading x10) (100000LUX/200000LUX range reading x100) P.s:1 fc=10.76lux Spectral response:CIE photopic.（ClIE human eye re sponse curve） Spectral accuracy:f1s6% Cosine response:f1252% Accuracy: Calibrated to standard inc andescent lamp at color temperature 2856K. ±3%±10dgts（<10000lux） ±4%±10dgts（210000lux） Resolutions: Range 200LUX 0.1 2000LUX 1 20000LUX 1 200000LUX 1 Repeatability:±2% Temperature Characteristic:±0.1%/C Measuring rate: Approximately 2.0 time/second Photo detector: One silicon photo diode with fitter Power source: 2 * AAA batteries (Battery not included) Size: approx. 185*55*30mm / 7.3*2.2*1.2in approx. 87*55*20mm / 3.4*2.2*0.8in (Sennor) Weight: approx.278g / 9.8oz Accessories: Instruction manual, batteries. Package list: 1 * Light Meter (Battery not included) 1 * Instruction Manual 1 * Portable Bag