I am designing an M1 system for my house under construction. All window and door sensors will be 6000 series sensors. Even though one M1XRFTWM supports enough wireless sensors for the house, I’m considering using two of them to make sure the coverage is adequate. The house and attached garage is roughly 140′ wide by 50′ deep. The current plan is to put the M1XRFTWM’s in the attic, each about 25′ from the center of the house, so 50′ apart and each about 45′ from the outside edge of the house.
The installation manual says “Special attention must be made to minimize excessive coverage overlap.” However, it doesn’t give any advice on what is considered “excessive coverage overlay”. Is 50′ apart likely to be too close? I can have them up to about 90′ apart if necessary.