This module is widely used for tank level control, pump control and kinds of ON-OFF control. It has 4 inputs and 4 output. You can use this module for wireless ON-OFF control.


4-way digital isolated input, high reliability and stability.

4-way relay dry contact output, contact current is 220V, 5A.

Collocated with a 2km-3km RF module inside;

Frequency: 433MHz (400MHz/450MHz/470MHz)

Power output: 500mW

Receiving current: 60mA;

Transmitting current: 350mA

Power supply: DC 12V-30V