Working Voltage: 12VDC

 Working Frequency: 315MHz - 433MHz

 Working Range: 80-120 Metres

 Remote Controller Has 4 Buttons To Control 4 Different Devices

 Main Controller Has 4 Units 12VDC 10A Relay

 TM4: Each Main Controller Can Control Up To 8 Pieces Remote Controllers

 IM4: Each Main Controller Can Control Up To 200Pieces Remote Controllers