1. With 4 wires system connection. Using 4-cores cable to connect the camera and monitor. ( We will send 5 meters cable to you to test, for the longer cable, need to buy by yourself when installing) The max distance between indoor monitor and outdoor unit is up to 100 meters. Different distance, use different diameter cable, please check the following from to choose corresponding cable. 2. Support Two-way Audio. One camera can working with 6 indoor monitors. One monitor can working with 2 cameras. The camera can talk with the monitor. And the monitor can talk with each other too. 3. Waterproof Rainproof This outdoor camera equipped with a waterproof Rainproof cover, can be used even in very bad weather. You can install it at outside. 4. With white LED night vision The outdoor camera build-in 4 white LED light. With this function, you can see outside no matter day or night. Keep your home more safer. 5. One key to unlock This door phone can work with 12VDC electrical lock. With this function, you don't need go to the door to open door for your guest. This will bring great convenience for you and your family members. You can open the door with the unlcock button on the indoor display (monitor screen), or door exit button, or remote control, or RFID keys, or Password 6. About RFID Keys You can open the door with the RFID key card from outside. This camera support 500 user cards. We will program the RFID for you before ship, and if you want to add or delete keys, you can do like below picture show: Remote Control when you want to go out, you just need to click this Remote control, then you can go out: Power supply This is a 110V-260V Access Control Power supply, it is made up of high quality electronic components and advanced international technology, it has anti-interference ability, provide very stable and reliable output in a various applications such as lock control/ controller control/ exit button/ RFID-ID Reader.etc. It controls electric lock directly. Can reduce the load of access controller, save wiring to reduce the hidden trouble Based delay control circuit, lock time can be in 0-15 seconds Automatic protection function, unexpected situations such as when the power supply short-circuit occurs, the power may be temporarily disconnected or the fuse auto insurance line off Operative device: E/M Lock, Access Controller, Exit Push Button. Specification Indoor Monitor LCD Screen 7" TFT Resolution 800x480 Calling duration About 120 seconds Monitor duration About 60 seconds Power Consumption Working: 9W; Standby: 2W Adapter Input AC 100-240V, 0.6A, 50/60Hz Adapter Output DC 15V, 2000mA Working Temperature -35 ~ 50 Celsius Installation Wall mounting Material PMMA and ABS Size 240(L) * 150(W) * 26(H)mm Net Weight 500g Outdoor Camera Camera Lens CMOS Resolution 700TVL illumination 0LUX / F1.2 Night Vision Visible within 3m Power Supply DC 15V, 0.5A Working Temperature -35 ~ 50 Celsius Case Alunimum panels, ABS rainproof Installation Surface mounting Size 180(L) *98(W) * 45(H)mm Net Weight 400g 6. Wiring Diagram Package NOTE: We have the user manual in English , French, Spanish and Russian language.We send the user manual in English/Russian language in default, please leave us message if you want the user manual in other language. Noted: Please leave us a message which type of power adapter you need, otherwise we will send it according your address. (description exceeds maximum possible length)