Expand your Yale Smart Alarm System flexibly with wireless intrusion detectors for your doors and windows. With the Yale intrusion warning sensor, you can monitor the opening of any door and window in your home and be alerted to potential break-ins thanks to the vibration and shock sensors before they occur. When the alarm is armed, you will receive real-time notifications via the Yale Home App as soon as the sensor's status changes. At the same time, the Yale alarm system will immediately scare off intruders with a loud siren. With its slim profile, this sensor is ideal for tight spaces and seamlessly integrates into your home's decor. It can be flexibly and easily mounted in the desired location using the included installation materials, either by screws or adhesive pads.