4 digital inputs, 4 relay outputs Modbus RTU, wireless PLC
Use for pump control, water level monitoring. Motor, valve, lights ON-OFF control

2 digital inputs, 2 relay outputs ModBus RTU, wireless PLC
Use for pump control, water level monitoring. Motor, valve, light ON-OFF control

Control 15km, RS232 and RS485 port, baud rate changeable, no need program, and no communication fee.
Widely used for SCADA, RTU wirelesses control, PLC communication, ect.

Control 20km, VHF or UHF band, can transmit data or voice, no program
With VOX function, Widely used for SCADA, APRS, Pagers communication

Control 8km-10km, no program, no communication fee.
Widely used for SCADA, RTU wirelesses control, PLC communication, ect.