Timer Relay Module DC 12V Delay Timer Switch Relay Board Adjustable 0 to 25 Second Turn Off Module for Car Lamp Delay

Wired it exactly based on the diagram and it worked on the first try. Press hard when you loosen the terminal bolts, it’s a tight fit. Had to open up the terminals with a flat head after too. But otherwise I give it 5/5 all day.

Like another who was a little puzzled why SVCC and SIG and no reference GND…. SIG should have been labeled SGND and all would have been clear. Once that was straightened out it worked as expected on the test bed. Time will tell how robust the product operates.Quoting the other user:“ Finally Figured it out... 12v to SVCC to Trigger with SIG to GNDReviewed in the United States on April 7, 2022Once the 12v to VCC is applied you can adjust the delay from 1 second to 1 min and 50 seconds (not 25 second) Wire GND to GND and GND to SIG. With the 12v still applied you can then trigger with 12v applied to the SVCC. Once the 12v is removed from the SVCC terminal the relay deactivates after the delay set time. This worked for me. Adjusting the pot clockwise reduces the time delay. Good Luck”

It works as intended but the terminals are not screwing properly and hardly hold any wire. I have to use solder to hold them in place. Not a very complete good product. I wonder if it is going to last...

The description for this module states “ Relay keeps dis-energized until there is an external trigger signal.” However, using the SIG and SVCC terminals seems to have no effect. The description implies that a signal on one (or across) these terminals will energize the relay for the set delay time, but closing a circuit between the terminals has no effect, neither does applying + or - supply voltage to either terminal.

Perfect for the project it was needed for

Electrically it works fine but why 2 mounting holes right in front of the relay terminals? screw heads block the wire access, not to mention create shorts.