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

Timer worked as advertised. I'm using it for a one-shot 0.25 second time on delay to open/release vacuum on an automatic choke system on my generator whenever it cranks. The Relay worked perfect and my generator starts consistently now! Yahoo. We'll see if it actually lasts inside my generator enclosure:)

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 installed LED daytime running lights on an old hobby vehicle and used a pair of these to turn off the light adjacent to the activated turn signal. They work perfectly and added that extra touch of class to the project.

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.

I bought this timer to operate a heat scavenger fan to cool off an engine bay. I need the fan to operate for 10 minutes after I turn on a 12vdc switch. Also, I need to have the fan turn off on those occasions when I want a shorter run and manually turn off the switch. This timer satisfies my requirements!I did have one problem after it was programmed as it did not seem to power on via the 9-volt battery I used for programming on my desk. I wrote to the e-mail address provided in the instructions, and within an hour or so I received confirmation that my programming selections were correct for my requirements. I was extremely pleased with the prompt and professional response I got.So, with the confidence gained by the response, the next morning, I got up and connected the switch to the 12vdc battery in the vehicle I planned to use it in and tested it again. And guess what: the timer worked perfectly. I don't know why it didn't seem to test well with the 9-volt battery I used for programming. But who cares.If you're curious, for my particular timing requirements noted above, I selected Function #17 and Trigger Function #2. They work just as I need them to.Also, I used a multimeter instead of an LED light to follow the timer's output while timing and testing. It works as well as an LED, and I had the multimeter on hand and didn't have a handy LED.The only thing I would have done differently if I were buying today is that I would have bought the inexpensive programming button kit that is offered as an option. It would have saved me time and effort while programming and would be well worth the few bucks.