This is a 700 TVL video doorbell intercome kit. It supports to connect up to 6 pieces indoor monitor. It built-in led lights enhance the night view, the rainproof cover provide a good protection for it. The RFID outdoor unit supports maximum 500 pieces rfid keys. It comes with 2 management cards to add / delete keys. The frequency of RFID reader is 125KHZ. Up to 2 meters. 35 °C +55 °C. Come with a waterproof cover. 130mm(L) x 93mm(W) x 30mm(H). ABS Plastic, Aluminum wire drawing. Room to Room intercom. 35 °C 55 °C. 240mm(L) x 150mm(VW) x 26mm(H). Intercom, monitor, unlock the door, 25 ringtones. 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. This outdoor camera equipped with a waterproof & Rainproof cover, can be used even in very bad weather. You can install it at outside. 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. One key to unlock. There are several ways to open the door lock when you are outside the door: using the RFID keyfobs or the remote control set. This item comes with 10 RFID keyfobs (including added keyfob and deleted keyfob). Besides, if you need more RFID keyfobs, you can add the quantity of the RFID keyfob as you like. 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. 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. Operative device: E/M Lock, Access Controller, Exit Push Button. It is a High-performance 180kg Holding Force electric magnetic lock which suit for many access control system. This electric lock can meet your need perfectly! Mode: NC (locked whilst power supply is operating), fail safe mode. Application: wood, iron doors. Main body dimensions: 171 x 39.2 x 22mm. Pack includes: electric magnetic lock, installation diagrams. Waterproof version, can work outside. Performance Testing: 1000000 times aging test. Safety function: Built-in voltage spike suppressor.