The Nest Detect Motion Sensor is a versatile motion detector that works seamlessly with the Nest Secure alarm system. It can be placed on a wall or door and detects both motion and open/close events. The motion sensor uses advanced algorithms to distinguish between people, pets, and other objects, reducing false alarms. It sends instant alerts to your smartphone whenever motion is detected, allowing you to take immediate action. The Nest Detect Motion Sensor is easy to install and can be integrated with other Nest devices for a comprehensive smart home security solution. With its sleek design and reliable performance, it is a top choice for those looking to enhance their home security.