The wireless range for the sensors is about 700-800 feet with a direct line-of-sight for the All-New SimpliSafe. We have many customers who have installed the SimpliSafe DIY security system in large homes on multiple floors, without a problem. Garages and basements, which have thick walls, can occasionally present a challenge, but we’re confident our system can work for your home. If you have any concerns about your location, please contact customer support for a consultation (1-800-297-1605).
We also have a 60-day full refund satisfaction guarantee. If SimpliSafe does not meet your needs for any reason, you may return it for a full refund.