Designed to blend into any home and any décor, Door / Window Sensor 6 has been engineered to make your home smarter. Intelligence is what makes the connected home a smart one. With Door / Window Sensor 6 your Z-Wave system will have intelligence about the key doors and windows in your home. It’ll know when they’re open. It’ll know when they’re shut. And it’ll know when they’ve been opened and they shouldn’t be.