Time Delay Relay DC 5V 12V 24V Delay Controller Board Delay-off Cycle Timer 0.01s-9999mins Trigger Delay Switching Relay Module with LCD Display Support Micro USB 5V Power Supply (2pcs)

The manual was a big issue for me. However, I have since found a manual and here is the link again: https://m.media-amazon.com/images/I/B1GVAXm4XqS.pdf . I purchased 4 of these but have only worked with one of them so far. Within the first couple of hours of use, the micro USB came off the board. I checked one other and discovered very lean solder on the micro USB. I was using the micro USB port to power the timer. Now I am relegated to using the +, -, DC inputs. Other than the micro USB coming off, the unit works as expected and does what I need it to do.

gotta say, these are nice little time delay relays for the money. I can remember spending over $50 each for relays with less programability not that many years ago. the pair I received function just fine. It would be nice it they provided an instruction sheet, but they're not too hard to figure out if you're familiar with how relays work. not sure what the reliability will be like, but the build quality seems pretty good. my set came complete with the plastic mounts. no complaints.

These timers are almost identical to the DROK timers, but do not include instructions on how to wire and how to program. I have owned DROK timers and did not have issues with using them. My first two timers had quality issues ( bad terminal block, inoperative led, etc). The seller replaced the timers with first quality timers having no issues. So, he/she gets almost a perfect rating.

I'm sure this product is good to somebody but with no instructions at all even the little video on Amazon just shows somebody touching it there's no explanation of the buttons there's no explanation of which wires do what after spending 30 minutes on the internet looking for basic programming could have just took that money and bought something that comes with at least a simple piece of paper or a QR code for something better to program in the bin they go.

First one the LCD backlighting never turns off and now the second one after few uses the LCD became illegible.

The relay programming is great but sadly the micro USB power plug (the feature I bought it for) is very poorly engineered and snaps off very easily. It happened on both units I bought.

Worked perfectly. Good Job!!

Very versatile here my first rechargable auto timer water bottle top. I take this laser guided fully programable water bottle topper, also has a flashlight, everywhere with me. The gym setting, squirts water every minute during my workouts to remind me "stay hydrated". Party setting- I wired in 4 LED lights so I know it's mine, it's party time, set this atop your favorite mixed drink voilla- drinking game I call "shoot in your mouth" as the auto fire laser-guided pump shoots random squirts of alcohol into your mouth, LOVE IT! Great product, keep it simple.