1、Durable: Using a better transformer solution, dry contact output mode, to ensure the high stability and long life of the switch module, durable, can be used for a long time. 2、Fast Wiring: The relay radio frequency switch port adopts an open cover design, the wiring does not need to open the internal, and the wiring is direct and simple. 3、Direct Control: This remote control switch module can directly drive DC and AC loads, and each relay has a set of normally open (normally closed) contacts. 4、Multi Purpose: Suitable for electrical control circuits of anti theft alarm, electric doors and windows, signal control, industrial control, lifting equipment, etc. 5、Good Performance: Wireless relay switch working voltage is AC85‑250V, 433MHz working frequency, inching, self locking and interlocking working modes.