Digital Illuminance Meter Lumen Tester Brightness Meter 1. Measuring range: 0.1-200000LUX 2. Measuring gear: 999.999999 19999x10LUX; 99.9999.919999 FC 3. Illuminance display: 5-digit display, up to 99999 4. Sensor: digital light probe and filter 5. Angle of incidence: 120 degrees 6. Spectral range: 400-700nm 7. Sampling rate: 8 times second 8. Automatic shutdown: 15 minutes (can be manually shut down) 9. Operating environment: -10 - 50 degrees Celsius, within 80% relative humidity, indoor altitude less than 2000m 10. Storage environment: -10 - 50 degrees Celsius, within 70% relative humidity (remove the battery) 11. Power supply: 3 x 1.5V AA (LR06) batteries (not included) USB Micro interface 5V 12. Display size: approx. 5.3 x 4.4cm 13. Size: about 25.6 x 6.7 x 3.5cm 14. Weight: approx. 250g Features: 1. Light source type selectable, customizable light source coefficient 2. Probe can be rotated 360 degrees, detachable measurement, spring wire can be stretched 1.5m 3. Upper lower limit alarm: the upper and lower limit alarm threshold can be set, when the measurement is higher or lower than the set threshold, there will be a buzzer alarm sound, as well as alarm lights flashing 4. Battery (not included) and USB interface two power supply modes 5. VA high-definition color display, display with background lighting 6. USB computer communication (only TA632B): with real-time data communication with computer, display real-time data tables and real-time data graphs; xlsx data tables and graphs export and print, the upper computer software for computer systems Win7, Win8, Win10 Packing list: - Host x 1 - Cloth bag x 1 - Instruction manual x 1 - Data cable (TA632B)