1) MCU control and count time, more precision.
2) Two type working module, delay on, or delay off.( by change the S6)
3) Wide Range timer, 1 second to 1 hours
4) High Capacity Relay, 30A
5) Board size: 82mm x 35mm
6) This module has the reverse connection protection
7) With trigger function, can use a button, or extra signal control ( Optocoupler trigger )
Use the Iron solder to set it.
( If S1~S5 are all not solder, the trigger is double-stable, when trigger, the switch on, trigger again, switch off)
![](https://i.ebayimg.com/00/s/MTEyM1g3MDE=/z/Y9UAAOSw0QFXDM2i/$_57.JPG)