Have you considered the NX-650 and external contacts as mentioned in another recent thread? You can use small magnetic reeds and wire them back to the 650 placed in a more aesthetic location. I have up to four reeds wired NC in a series on the 650's and they have been rock solid. If you need more than one switch per window the cost savings add up. My back florida room has 10 openings on glass sliders done with three NX-650's. While in theory the longer the run on external contacts, the shorter the battery life, I figure I can buy a lot of batterys with the savings from seven switches.
I'm very new at this...so I appreciate any suggestions at all. This sounds great...but I am not sure that I understand exactly...for example:
Most of my windows are in pairs (left and right) so you are saying buy an
NX-650 and then buy two wired sensors (when you say small magnetic reeds I assume you mean this) and put them in series on the NX-650? I have read the other recent thread...but didn't think of using multiple sensors on a single Nx-650.
Thanks.