Feature:1. Supporting 500 fingerprints, 1000 IC card unlocking, password unlocking, which is flexible and convenient to use.2. 2wire system requires only two wires, the power supply, audio, video and control signals are all transmitted through the 2wire nonpolar central power supply.3. Using plugin connectors and DIP switches for quick installation. Flexible cable connection, support in and out, branch and mixed mode.4. Adopt integrated power supply, it supports up to 2 outdoor cameras and 6 indoor monitors (only include 2 cameras and 2 monitors).5. 7in color TFT LCD monitor, no radiation, low power consumption and high definition. Adjustable volume, brightness and contrast. Support dual intercom communication between indoor monitors.6. Aluminum alloy outdoor unit, rainproof, antioxidation and durable. With white light LED night vision device, excellent night vision effect.7. 2 locks can be unlocked at the same time. Support handsfree intercom, with mute indoor intercom function and group call/intercom function.Specification:Item Type: Video Door PhoneMaterial: Aluminum Alloy + ABS PlasticOutdoor Camera:Aluminum alloy external device with white LED night vision lensCamera: 1/3in CMOS 1000TV lineViewing Angle: 92Minimum Illumination: 0.5LuxUnlock Type: Support 500 fingerprints, 1000 IC card and password unlockConnection Method: BUS 2-wireInstallation Method: Wall-mountedWorking Temperature: -30 to 50Size: Approx. 200 x 100 x 55mm/7.9 x 3.9 x 2.3inMonitor:Screen: 7-inch LCDEffective Pixels: 800 x 480Connection Method: BUS 2-wireSize: Approx. 238 x 169 x 24mm/9.4 x 6.9 x 0.9inHow to Use:1. Connect the indoor unit, outdoor unit and power supply with cables, and the power cord is connected to electricity2. Adjust the color and brightness of the display, and use the intercom function of the doorbell3. Connect the electronic lock at home to unlock the doorbell.Package List:2 x Outdoor Camera2 x Indoor Monitor1 x DC24V 2.5A Power Supply10 x IC Card2 x 4 Core Connection Lock Terminal Wire4 x 2 Core Connecting Terminal Wire1 x Screw Pack2 x Bracket2 x 2 Hole Terminal1 x 3 Hole Terminal1 x 4 Hole Terminal1 x User Manual