ICSTATION Delay Relay Module, DC 12V 10A Time Delay Switch 0-999s/min/h Timer Relay LED Display Digital Timer Cycle Delay Switch Module for Light Water Pump Engine

Excellent! works as described, many timing configurations possible. Programming for timing seems a little confusing at first but gets easier with use. Cycles accurately. Module has memory... after setting for testing, powering-down, changing wiring to needed setup and powering back up, the custom settings I had made before were still exactly as set, nice feature! I think this is a brilliant little device for those of us needing a timer relay added to our circuits, works for me. It is unfortunate that the output voltage is never given in the item description, the specs or the manual. Recently have run two in tandem and the timing is very precise, still buy his timer. WOULD LIKE IT IN A BLACK BEZEL (rather than the periwinkle blue, just sayin) My Timer-Defaults: P0=2 P1=5 P2=0 [on 12 hrs then off 12 hrs], Display stays on.

I found this unit did exactly what it was described to do. My application needs to flash a strobe every 15 seconds. This unit is just right for this task. I set it to go on for 1 second every 15. One of my requirements is low power consumption. The seller did a good job discribing the power usage and through testing it was spot on. It uses 12ma to count down the 15 seconds then spikes to 50ma for the one second on. This is due to the solenoid closing the contacts for that one second. After the one second the contacts release and it goes back to 4ma. The click of the contacts is loud and the display is bright but those were secondary and thus 5 stars. Another item to note is that if your Vcc running the timer goes down to just abouve 3 volts DC, the unit goes into convulsions. The display flickers and the solenoids do not close. This does not mean it is any less quality but you should have a solid 12 volts. Pros: Unit is easy to set. Display makes it easy. Uses low power in count down mode. Wire connection points are clearly labeled and tighten nicely with a small screw driver. Programming stays in unit even after the power is shut off. Con: Loud Display cannot be turned off Instructions did not come with the unit but were sent to me later. I had already downloaded them.

I'm a retired RF test engineer and designed many a project doing similar capabilities. My particular application is to turn on a pump for a given amount of time then shut off until manually reset. First, let's get the good out of the way. Excellent packaging, clear markings , bright display. spacing between controls is good even for fat fingers like mine, Functions as advertised. Current rating of relay more than adequate for my project. Price is very good. Ok, let's start with the instructions. Like so many it is sparse and very poorly constructed. I spent hours rewriting them to completely understand how the device completely works. Second, once the instructions were clarified the available functions were curious, in some modes, but more than adequate for most any scenario. There are a couple of major faux pas, in my opinion. First, of course, is the instructions. Second, the instructions fail to mention any changes made, on initial setup or later will cause the timer to startup sequence for the time given on T1 and the time period selected with P0, seconds, minutes or hours. This isn't terribly bad for low time settings but would be terribly annoying if minutes or hours have been selected in P0. Because of this, it is wise to set T1 to 0 at the beginning, which is should already be. Because the device does a single sequence on any change, be aware that may cause some problems with your application, the relay either being closed or open for that first time period. Once the timer starts there is really no eloquent way to stop it and if you try it will just start another count down time sequence. My particular usage requires a 17 minute time delay for the relay close then open until 'reset' is pressed. Not really impressed with waiting 17 minutes for the relay to open before I install the controlled device. Finally, I foresee a time when the brightness of the LED's could be a problem. I have found no way to reduce the intensity. Overall it's above average, but certainly not perfect. You need to study the various modes carefully and understand your needs. Above all remember the timer restarts every time you change something. It could be either annoying or destructive.

- construction is flimsy - no surface mount option - poor terminals: too small for even 16 AWG with ferrules, best to use solid conductor - no serial number implies no QA, so caveat emptor - product is simple to use, but not if you try to make sense of the instructions (that are not included) - first timer tested OK, then never worked again: programs ran correctly, but there was never any voltage on the load terminals. Promptly received a replacement that had the same defect and never worked. - Best part of the product is the Amazon product page with dogs and cats. Cute, but everything else is a bust.

Easy to program