45AHD 4.5 inch Motion Detection Camera Video Smart Digital Door Viewer(Black)

1. Image Sensor: 1/4 CMOS

2. Effective Pixels: 1920x1080

3. Minimum Illumination: 0.5 Lux/F1.6 Color

4. Signal-to-Noise Ratio: Greater than 50dB

5. Electronic Shutter: 1/4-1/10,000s

6. Focal Length: 2.4mm

7. Horizontal Angle of View: 140 degrees

8. Aperture: F2.0

9. Infrared Night Vision Lights: 4, 3mm, flat head, 90° angle, 850 infrared light

10. Supported Languages: Chinese, English, French, German, Spanish, Portuguese, Italian, Russian, Hebrew, etc. (Built-in languages may vary between versions; customizable languages available)

11. Recording Time: 10 seconds, 20 seconds, 30 seconds

12. Light Frequency: 50Hz/60Hz

13. LCD Resolution: 480x854

14. TF card: Supports up to 32GB (not included)

15. Video compression: H.264

16. Protection rating: IP55

17. Battery: 3.7V/3500mAh lithium battery

18. Wide dynamic range and low-light capabilities, with automatic color-to-black transitions

19. Utilizes a 32-bit processor and professional video codec chip

20. Infrared range of 1-2 meters, four 850 infrared LEDs, and PMW spectrometer technology

21. Built-in RTOS operating system, fully supports UI menu-based configuration and management

22. Supports video and photo modes for security purposes

23. Supports PIR motion detection and manual image capture

24. Integrated design, compact structure, and high reliability

25. Installs quickly and easily through a pre-installed peephole in the door

26. EEPROM data storage ensures data is not lost even after a power outage

Specification: