NEXT-LEVEL PROTECTION: Perfect for homes and apartments, our wireless motion detector greatly expands your view of the front door area! With a working range of 32' from the camera, it hides in plain sight for security that's discrete yet effective.WIRELESS VERSATILITY: Fully battery operated, our movement detectors skip the hassle of a wired system! Not only does this allow for a greater range of installation options, but it also ensures your sensors continue working during electrical outages.DIY INSTALLATION: With our easy-to-use movement sensors, there's no need to call an electrician! Designed with a sturdy magnetic wall mount, you'll hang them in a matter of seconds for an installation process that's truly effortless.CONVENIENT COMPATIBILITY: Brinno MAS200D motion detector sensors are compatible with our DUO SHC1000W and SHC1000 peephole cameras! Each model can maintain up to 6 motion sensors, providing you with incredible control and security.TRUSTED BRAND: When it comes to protecting your family and loved ones Brinno is the name you can trust! If you have any questions, don't hesitate to let us know. Our customer service team is always happy to help.