Anyone who is considering buying a wireless rain sensor for their irrigation system needs to be aware that the Hunter unit is a lawn and garden disaster in the making. In the event of a power outage, this unit reverts to its default of shutting down your irrigation system. Thats right.The good folks at Hunter decided that it would be a great idea that in case your home has even a momentary power outage and one of its rain sensors is active on your system, you need to MANUALLY climb up to the transmitter and push a button - or the system will be shut down indefinitely. No problem! You are ALWAYS home just watching that light and waiting and you always know when that 1 second gap in your voltage happens - you never go to sleep or go on vacation so it really isn't an issue, right? Just buy an Irritrol RS1000 and save yourself a nightmare -they have POWER OUTAGE PROTECTION, and RESET AUTOMATICALLY after power loss and they work fine with Hunter controllers.