The Blink Outdoor Motion Sensor is a weather-resistant motion detector that works seamlessly with the Blink Outdoor security camera system. It features a wide detection range of up to 30 feet and can be adjusted to different sensitivity levels. The motion sensor uses infrared technology to detect movement and sends instant alerts to your smartphone whenever motion is detected. It is easy to install and can be placed on a wall or ceiling. With its long battery life and reliable performance, the Blink Outdoor Motion Sensor is a great addition to any outdoor security setup.