Your Smart Door and Window Sensors inform you on smartphones before an intrusion. Placed on the doors and windows you choose, they detect any movement or vibration indicating someone is trying to force the opening as well as any sudden opening. You earn so precious time. Check whether each door or window with Smart Sensor is open or closed, directly from the app. Depending on the settings, Smart Sensors can also alert you on smartphones if a door or window has been open too long. Smart door and window sensors are easy to install to complement the Netatmo Smart Internal Camcorder. One-piece, water resistant, simply apply to the door or window regardless of its structure. Take advantage of a complete intelligent video alarm system by combining the Netatmo Smart Internal Siren with Smart Internal Camera and Smart Door/Window Sensors. Customize your system for even more effective protection.