Feature:1. Integrated design, all-metal casing, compact structure and high reliability.2. CMOS sensor, allglass 1MP HD lens, supports multiple video formats up to 1280 x 720P.3. Support PIR human motion detection, ensures home safety.4. Wide dynamic and low light function, support automatic change to black color.5. 4pcs 850nm infrared lamps, infrared distance 12m, using PMW split technology.6. 4.3inch low 8bit TFT LCD display, internal 4 ringtones and 3level adjustable volume.7. Support video mode or camera mode, auto power off function, support manual image capture.8. Equipped with DC3.7V 1800MAH litpo battery, low power consumption and long standby time.9. Easy to install through the observation hole reserved on the door.10. EEPROM data storage mode, no stored data will be lost after power off, maximum support 32G high-speed memory card.Specification:Item Type: Door ViewerMaterial: ABS + Zinc AlloyMonitor Color: BlackImage Sensor: 1/4in CMOSEffective Pixels: 1280 (H) x 720 (V)Minimum Illumination: 0.5lux / F2.0 (Colorful), 0.02lux / F2.0 (Black and White)White Balance: Automatically Track White BalanceGain Control: AutomaticSignal to Noise Ratio:> 50dBBacklight Compensation: OnWide Dynamic: YesElectronic Shutter: 1 / 4-1 / 10,000sDay / Night Mode: Filter Color to BlackFocal Length: 2.4mmHorizontal Viewing Angle: 140 Aperture: F2.0Infrared Night Vision Lights: 2pcs, 3mm, Flat Head, 90 , 850 Infrared LampAuto Power Off: Off, 10s, 20s, 30sLanguages: Chinese, EnglishMotion Detection : SupportedDisplay Settings: On / OffRecording Time: 10s, 20s, 30sNumber of Photos: One, Two, ThreeFormat: Support Formatting Memory CardLight Source Frequency: 50HZ / 60HZPower-off Memory: SupportDefault Setting: SupportRingtone Settings: Built-in 4 RingtonesVolume Setting: 3 Levels OptionalMain Chip: JRInfrared Body Sensor: PIR SensorPir Sensing Mode: 9.5mm Fresnel LensLCD Screen Type: 4.3LCD Screen Resolution: 480 x 272Mmeory Card: Support Up to 32G (Not Included)Maximum Image Size: 1280 x 720Frame Rate: 50HZ: 25 Frames (1280 x 720P)Video Compression: M-JPEGAudio Compression: G.711 / 16kbpsStandby Current: 80UAWorking Temperature: -30 C - 65 C (outdoor) / -10 C - 50 C (indoor)Working Humidity: <90%Installation: Screws and CeilingApplicable Door: Approx. 40 - 110mm/1.6-4.3inApplicable Door Viewer: Approx. 15 - 50mm/0.6-2inDisplay Size: Approx. 136 x 83 x 14mm / 5.4 x 3.3 x 0.6inDoor Viewer Size: Approx. 62 x 62 x 15mm / 2.4 x 2.4 x 0.6in.Package List:1 x Indoor Display1 x Outdoor Viewer6 x Screw1 x Mounting Plate1 x USB Cable1 x 3.7V 1800ma Lipo Battery1 x English User Manual