Review on 🕒 12V Time Delay Relay Module by UCTRONICS for Enhanced Smart Home Integration, Tachograph, GPS, PLC Control, Industrial Control, Electronic Experiments, Arduino Robot by David Banks

This is a good timer. The instructions aren't perfect and it's difficult to set them to specific times, but they seem to work well. I use it to power the trigger wire for my electronic fan controller on my Jeep for 10 minutes after the ignition is turned off to prevent overheating. It seems to work fine once you have it set up. The biggest problem is that it doesn't come with a case to install it. Update March 2021: They now have a version with a case. I got this one to run the fuel pump for 30 seconds until the project vehicle's engine started. I have one with a case. The case is fine - it's not sealed so under the hood installation is still not possible unless you seal it with silicone. You have to pierce the case for your wires, which was weird but not that big of a deal.