I have installed and used many of the Miniclik rain sensors and they work very well, provided they are installed correctly. As silly as it sounds be certain that the sensor is installed in a location where it will be hit by rain and that it will not be hit by a sprinkler. I have been called in for service and seen them installed under the overhang of homes where they will never receive rain as well as in locations where sprinklers hit them and shut off the system. The wireless models are nice, but necessary only in those situations where being wireless is of benefit, in my opinion.

I went thru three other vendors before having put in the mini-click system.... great system and great value. Highly recommended!!