Here are the 6 critions for Hotel RCU. The RCU includes the network wireless lock, the door peephole viewer, the network safe box, the elevator control, unique switch and hotel room detectation. Bonwin RCU is a unique generation of hotel Guest Room Control Unit which uses the international most advanced microcomputer control chip. Through the TCP/IP communication protocol, it can control and monitor different target and equipment, such as panel, curtain, doorbell, lamp, fan and air conditioner and so on.