1. Range: 100,000 Lux2. Resolution: 0.1Lux3. Data recording: 50 groups4. Spectral response: automatic/manual5. Sampling rate: about 2 times/second6. Photoreceptor: photodiode with filter lens7. Function: Lux/Fc conversion, reading lock, low voltage prompt8. Power supply: 1.5V AAA battery x2 (not included)9. Size: about 18.5x5.5x3 cm10. Weight: about 150 gramsFeatures:1. The back bracket design can be placed on the desktop for stable measurement according to the usage scenario2. Support data storage function, easy to view measurement data, can store 50 sets of data3. High-sensitivity photoreceptor, sampling frequency 0.5 times/second, accurate and reliable measurement4. With soft rubber protective cover, effectively anti-drop, dust-proof and shock-proof, comfortable to handle5. Large range, suitable for use in various scenarios, home, school, factory, laboratory, etc.Specification: Package Weight One Package Weight 0.27kgs / 0.60lb One Package Size 20cm * 8cm * 4cm / 7.87inch * 3.15inch * 1.57inch Qty per Carton 122 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 122 pcs = 21594 pcs40HQ: 412 cartons * 122 pcs = 50264 pcs