1. The module complies with international safety standards , the load control area and regional isolation tank ;

2. using double-sided FR-4 circuit board design, high-end chip production process ;

3. using loose music authentic relay control ;

4. with the relay instructions , pull off, disconnect does not shine ;

5. the signal input has a low signal , often beginning with a common terminal will be turned on

6. the relay can control the various devices and the load