A few years ago, we bought an automatic, battery operated, watering timer for watering our plants. As always, the purchase was a considered one; with an eye to quality, reliability, ease of use, and, the driving factor: cost.
I'd only just started buying stuff from China (knowingly buying, that is, rather than not checking where much of our stuff comes from) and Banggood was in its infancy and offering some amazing deals. Of course, they still do, but back then the prices were more than a little competitive.
(Even after adding shipping, paying for insurance, and import duty, the timer cost much less than the high street equivalent).
No Instructions
This could be the reason for that low, low price: opening the package, there were no instructions. At least, not in English, and I don't happen to speak any of the oriental languages that the instructions were printed in.
So, I set about trying to find out how to make it work, and the result are these very useful instructions that you are welcome to download and try for yourself if you happen to have a watering timer that looks like mine.