Time Switch Relay,Digital LCD Programmable Timer,12V DC/AC Input,200-250V 16A Output,28 Programs Daily/Weekly Schedule,CN101A for Lighting and Equipment Control

Works as expected

We have had this timer since May 19, 2024. Some display features sometimes work, sometimes not. Interrmittent operation. Timer can be set, but it doesn't take a user entered time. Instead, it starts and stops at a time that wasn't set by user.

I had a larger version of this from years ago, and this one was about 2/3rd the dimensions of the old one so I was a bit apprehensive on the performance. However, it performs quite well and is easy to program after you fiddle around with it. There is a display that shows the current time and date, as well as whether it is on Auto or Manual Off/On. The bottom buttons are there just to program the time. To start, I first pressed the recessed "C" button to reset the parameters. Then, you hold the clock button AND press the D+/H+/M+ button to set the clock time. Press the clock button to finalize. Then for the program, you push and release the "P" button, which brings you to the "On-1" screen for the on time of program #1. You do the same thing and set the dates and the single time you want this timer to be on, then press "P" again to switch to the "Off-1" screen. Repeat the process to setup a stop time for program 1. You need to do this within 20 seconds of your last button push or it defaults to the clock screen and you have to return to that programming screen you were on. You can do several programs at once, but I only needed 1. The manual button can switch between a On mode, off mode, and Auto mode with a single press each time. It is indicated by the lightbulb symbol on the screen. When the relay is on, you will hear a click as it turns on and the top left besides the manual button will light up. You can also completely shut off the timer by holding the manual button for 5 seconds. The wiring is simple, with just a 12V power source to power the timer and another set of nodes for the relay wire. You want some female spade connectors and a crimper to wire this. The relay states it supposedly can handle up to 16A and 250 VAC of power through it. It mostly just closes a loop so you can actually run really low amounts of current through it too. The 16A is the main guideline maximum, so even if you relay 12V, I think you should keep it to 16A. This timer also runs off a CR2032 battery to maintain the clock even without a power source. I'm not sure how long this battery will last though and whether it will take power from the 12V source rather than the battery when it is running. The timer screen was already running when I got it and I don't know how long it's been. The seller could've shut it off with the manual button to save power. I think the top of the timer could pop off and you can possibly replace the CR2032 battery but I'm not sure as I haven't tried. That's my main concern is that the clock possibly relies entirely on the CR2032 battery and not the 12V power source.

I bought this to use with my 12V garden drip system. I set up the time and watering schedule in seconds out of the box, I thought this was completely intuitive and didn't even look at the instructions. Next: wiring. I looked at the back of the time, saw some "+" and "-" and thought I had it figured out...connected it up to my pump and battery and nothing. Red light came on when I pressed manual, so I knew it wasn't broken. Figured the amperage rating was off and it wouldn't work for me after all (I need 15A to start the pump). Not too concerned since this thing is so inexpensive, I'll just look for something else. But first I double checked the specs and then saw the info in the Q&A and realized I did not do the wiring correct. Not even close. Next time my electrician comes over I will ask him WHY I had to wire it like the Q&A suggests, but for now, I watched the video in these reviews by the guy who shows you how to wire it to use for a lamp or whatever and now I have a working timer. I guess I am not as smart as I thought I was, but grateful to the folks who shared the correct wiring here.

It get the job done

Great little timer for the price. Doesn't require a battery replacement. Easy to program. The MANUAL button takes a few seconds to operate. "Type A" wiring connection works well for 12V setups. 15 different weekday selections and many ON/OFF settings. Compact size and wall mountable. NOT weatherproof. Will require a weather box.

So far this little thing is pretty cool. Bought for an RV to control a cigarette lighter outlet for an electric cooler I have. As I don't want it on all the time only when the solar is working during the day and it gets warmer. Yet can still turn it on at night for a little, though it's not necessarily needed. Cool thing is you could opt to switch to 120AC which my regular refrigerator runs on. Plenty of programmable modes to turn off and on to your hearts content. Only downside is aesthetics. Found a way to kind of flush mount it so no wires are showing, but there is no template and the screw holes aren't really friendly with that.

Good timers. Easy to wire. Easy to program once you figure out the instructions, which are not originally in English.

un po macchinosa la programmazione ma il prodotto e conforme a quanto descritto e funziona molto bene, ottimo

This is the second I have, They’re very good keep good time easy to set up at a bargain price.

I use this on a solar/battery setup for my business sign lighting. Easy setup, been working great ever since install.

Beginner in electricity here. All good, but watch out for the connections. It needs fast-on connectors of the right size (when you know nothing you might end up buying again and again connectors that aren’t compatible…) I use the CN101A to automate my water pump on a 12v solar system. Works really good and is very easy to program. There’s a documentation. Installation was a bit harder (because of other modules making the wiring complicated) but ChatGPT helped me efficiently on that one. I recommend this.

ممتاز ، ممتاز ، و العيب الوحيد هو ارتفاع ثمنه .