The most useless thing I have ever bought. It never worked, almost destroyed my entire vegetable garden, and the suppliers I contacted were absolutely unacceptable. Stay away!!!!

After one month, the programming started to malfunction on its own, resetting and freezing. I tried new batteries but no difference. Unacceptable build quality

The same applies to the OEM Nero 2.
Its problem is that in order to function, it relies on a series of plastic gears. After a few watering cycles, these either break or stop working together.