Description About the product Application: Widely used in electro-optical sources, research teaching, metallurgy building, industry inspection as well as agriculture researching and illumination control. 1. Powerful measurement functions: It can measure not only current values, maximum and minimum of illuminance and temperature, but also illuminance difference, integrating illuminance and average integrating illuminance. 2. Support automatic storage of illuminance data (up to 1900 groups) and manual storage of illuminance data (up to 60 groups) 3. Wide measuring range (0 to 200000 lux) and support automatic range shift 4. Delivered with computer-based analysis software, allowing users to operate the meter with ease 5. Quick response, high portability and operable by a single hand. 6. The sensor can be rotated. 7. Backlight Specifications 1. Photoelectric element: silicone diode 2. Thermal probe: NTC thermistor 3. Illuminance Measuring Range: Total measuring range: 0-200000 Lux - x1: 0-199.9 Lux - x10: 200-199.9 Lux - x100: 2000-1999.9 Lux - x1000: 20000-200000 Lux 4. Temperature measuring range: 0-40 Celsius Degree 5. Illuminance accuracy: +-3%rdg (below 10000 Lux); +-4%rdg (above 10000 Lux) 6. Temperature accuracy: +-1.0Celsius Degree 7. Units of illuminance and temperature: Four combinations of units are available - Lux / Celsius Degree - Lux / Fahrenheit Degree - FC / Celsius Degree - FC / Fahrenheit Degree 8. Illuminance data storage - Automatic: Up to 1900 groups of data can be stored. LuxLAB is used to set the storage cycle and whether to start or stop storage. - Manual: Up to 60 groups of data can be stored. Whether to store is determined manually. 9. LCD display update frequency: Twice per second 10. Operating Temperature / humidity: 0-40 Celsius Degree, 10-90%RH 11. Storage Temperature / humidity: -20-50 Celsius Degree, 10-90%RH 12. Power Supply: two AAA batteries (not included) 13. Battery Life: 10 hours (continuous operation with a USB connection) 14. Auto shutdown: you can set anto shutdown timer through LuxLAB.