10A Mini Timer Time Delay Relay .2 Sec to 1000 Hours. 12V. Power on or Off Delay, Cycling and More

I have probably purchased over a dozen of these over the last few years for various projects. My most heavily used is the one I use to automatically turn off my truck bed lights. if left on they would kill my battery so I use this with the trigger function to automatically turn the lights off after 30 minutes. Does a great job the truck is always outside the unit is just stuffed in the post hole of the truck with no weather protection. It’s been working for at least 4 years through summer and winter and all the rain with no issue. These are durable low power units and do a great job. Other projects I’ve used them as a fail safe to hard power cycle electronics in hard to get to locations every 24 hours just in case they stop working and need a reboot, just a timer off for 30 seconds on for 24 hours pretty simple. Those have been working for over a year in hot and cold locations but protected from the weather. The time accuracy isn’t exact, don’t expect nanosecond accuracy but it will be within 10 seconds I guess at least for the duration I’ve used them for, never had a need for the up to 400 days capability. Configuration is a little different but once you get it figured out it’s pretty easy.

I bought this timer for the rear view camera that I installed in my 20-year old car.I set up the rear view camera to use the reverse light as the 12V DC power source, but that configuration has a short coming that the rear view get cut off as soon as I shift out of reverse. I wanted an “off delay”, so that the rear view camera stays active for a few seconds after I shift out of reverse.This timer is compact, mechanically rugged, and versatile enough for this application, although there is no operational temperature range specified.The instruction manual was reasonably readable and comprehensive, but the terminology related to trigger signal needs some clarity.The manual could have been much clearer if they explained the logic this device uses to set up internal pull-up and pull-down resister so that the triggering signal can be of any permutation of “high impedance vs low impedance to GRD/B+” as well as flexibility of setting it up as a voltage level-sensitive vs. edge triggered device.Also, the device programming is straightforward and easy, especially if you get the optional configuration board and whole bunch of alligator clip wires.Overall, I am happy with this product, but It may be a little too versatile and cumbersome for people who do not have a background in electrical engineering.