4 CH Wireless RF Transceiver DC Bidirectional Sync Module 3 mi (Model: 0023103)

Note: This synch module requires two or more to be used together. Package Include:1 x Bidirectional Synchronous Module: SM003-4D-50001 x User manual Introduction:This synchronization module is a bi-directional wireless device with integrated transmit and receive functions. It has 4 relay outputs, 4 manual buttons and 4 external manual switch terminals.Two or more synchronization modules can form a wireless synchronized remote control system. Any module can be set as a master module, like a transmitter, or as a slave module, like a receiver. The relay outputs of the slave module will automatically synchronize with the trigger signal of the master module.For example, when a manual button of the master module are connected, this module will transmit a wireless signal, and its own relay output will not be activated. When the slave module receives this wireless signal, it will be triggered synchronously, and its corresponding relay output will be activated. When a manual button of the maste