The eufy Motion Sensor E20 secures your house and recognizes movement. You can connect your device to the app when you receive it. To use this sensor, you always need a eufy HomeBase 2, 3, or Pro. As soon as someone walks into the room, you get a notification via the eufy app. This way, you always know what happens. Even when you're not home. The sensor is small and wireless, so you can place it anywhere without it standing out. For the most precise detection, place the sensor 1.8 to 2.3m above the ground. The battery lasts up to 5 years, so you barely have to do anything. With this sensor, you can keep an eye on an entire space. This gives a safe feeling and makes sure that you always know about unexpected movements.