Fangrui Product Details 1. Digital Illuminance Meter Lumen Tester Brightness Meter 2. Measuring Range: 0.1-200000lux 3. Measuring Gear: 999.999999 19999x10lux; 99.9999.919999 Fc 4. Illuminance Display: 5-digit Display, Up To 99999 5. Sensor: Digital Light Probe And Filter 6. Angle Of Incidence: 120 Degrees 7. Spectral Range: 400-700nm 8. Sampling Rate: 8 Times Second 9. Automatic Shutdown: 15 Minutes (can Be Manually Shut Down) 10. Operating Environment: -10 - 50 Degrees Celsius, Within Relative Humidity, Indoor Altitude Less Than 2000m 11. Storage Environment: -10 - 50 Degrees Celsius, Within Relative Humidity (remove The Battery) 12. Power Supply: 3 X 1.5v Aa (lr06) Batteries (not Included) Usb Micro Interface 5v 13. Display Size: Approx. 5.3 X 4.4cm 14. Size: About 25.6 X 6.7 X 3.5cm 15. Weight: Approx. 250g 16. Features: 17. Light Source Type Selectable, Customizable Light Source Coefficient 18. Probe Can Be Rotated 360 Degrees, Detachable Measurement, Spring Wire Can Be Stretched 1.5m 19. 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 20. Battery (not Included) And Usb Interface Two Power Supply Modes 21. Va High-definition Color Display, Display With Background Lighting 22. 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 23. Packing List: 24. - Host X 1 25. - Cloth Bag X 1 26. - Instruction Manual X 1 27. - Data Cable (ta632b)