Visual Intercom Doorbell 7in 2 Wire Night Vision Security Door Phone 1 Camera 4 Displays 100?240V

Feature: 1. A 2?wire system requires only two lines, the power supply, audio, video and control signals, all of which are transmitted through a 2?wire non?polar central power supply. Unlock 2 locks simultaneously. 2. Use a plug?in connector and a DIP switcher for quick installation. Flexible cable connection mode, support input/output, branch and mixed modes. 3. With integrated power supply, the system can support up to 2 outdoor units and 4 indoor monitors. The integrated multi?function and simple operation make the system more attractive. 4. Durable aluminum alloy outdoor unit has rainwater and oxidation resistance. Night sight with white LED. 7in color TFT LCD is radiation?free, low power consumption and high definition. 5. Monitor the outside of the door. Volume, brightness and contrast are adjustable. Mute indoor intercom function. Hands?free intercom. Specification: Item Type: Video Door Phone Material: Aluminum alloy + ABS plastic Outdoor Camera 1.Material: Aluminum alloy external device with white LED night glasses. 2.Camera: 1/3in CMOS 1000TV cable 3. View Angle: 130 degrees 4. Connection Mode: BUS 2 line 5. Installation: Embedded installation 6. Size: Approx. 238 x 121 x 41mm/9.3 x 4.5 x 1.6in The Monitor 1. Screen: 7in LCD 2. Effective Px: 1024 x 600 3. Connection Mode: BUS 2 line 4. Size: Approx. 238 x 169 x 24MM/9.3 x 6.7 x 0.9in Power Supply Voltage: 100-240V How to Use: Use the connecting cable to connect the power supply with the indoor unit and the outdoor unit, you can watch the outdoor situation in real time on the indoor unit.. Package List: 1 x Outdoor Machine (Camera)4 x Indoor Machine (Display)1 x DC24V 2.5A Power Supply1 x 2 Cores Connection Terminal Wire4 x Screw Package4 x Indoor Machine Bracket4 x 2 Hole Terminals1 x 3 Hole Terminal1 x 4 Hole Terminal1 x User Manual