4-Way Wireless RF Remote Control Switch Home Relay Controller Module 12V
Seven functions: jog, self-locking,, 2-way jog + 2 way self-locking, 2-way jog + 2 way interlock, 2 way self-locking + 2 way interlock, 2 way interlock + 2-way. It's just take you 1 minute. We'd like to settle any problem in a friendly manner.