Nexa, relay receiver 2 channels for two-circuit switch, WMR-30000
WMR-3000 can be connected to existing power switches, making the wireless. Potential fee outputs WMR 3000 is compatible with System Nexa and Nexa Bridge. 

Frequency: 433.92 MHz
Memory: 6 / channel
Dimensions (WxDxH): 47x47x20 mm