So I am looking for a cheap ('cause I'm funding it) but reliable solution for "linking" my home to my neighbor's home. They have a young boy who has a bipolar disorder and he can get really, really violent. For times when his dad isn't around, his mom needs to be able to quickly and efficiently signal us that we need to haul a$$ over and help. We have a short term solution in place where I have provided her with one of my Radio RA visor transmitters which I've programmed so that when one of the buttons is pressed, my home announces twice over thirty seconds that there is an emergency. Ultimately, though, we are looking to add something a little more long term and probably get them three or four locations where they can quickly get to a button.
As I was already starting to think about picking up some outdoor, wireless X10 motion sensors, I wanted to ask some of you with more experience in X10 RF stuff, what kind of range could I expect were I to add some X10 gear to their home that would be received at mine? The distance between the homes is approx. 100-120'. As for available gear in place now, we both have HAI OPII's installed. I also have CQC and a Russound CAV that I'll use for an announcement and I'll also be flashing some lights in our house. I'm also going to set up their garage door when they set off the alarm (to ensure that I can quickly get in their house) and thus, I need there transmitters to be recieved by both theirs and my HA system. That's part of the reason why we're looking to pull out the RA in the long term. We don't want to have to buy another RA RS232 module for their home to link to their HAI panel.
Any thoughts?