So I have 2 gates on my fence as well as the motorized gate across my driveway. I would like to put sensors on each of them to alert me and log when they have been opened. I thought about just using something like an X-10 DS10A, but I do not think they are going to last outdoors (Contact on gate, main unit inside garage or under cover), so can you guys suggest anything for me? I currently have Z-wave modules around the house and will be putting in some RF soon (Either W800 or RFXCom unit.