Implement motion and environmental condition detection with the UniFi Protect All-In-One Smart Sensor from Ubiquiti Networks. This battery-operated multi-sensor enables you to receive instant alerts when motion is detected, or when a door or window is opened or closed. Additionally, this device features an ambient light sensor, an alarm sound sensor for smoke and carbon monoxide audible patterns, and temperature and humidity sensors to ensure you maintain the ideal temperature threshold in your space. To detect water leaks with this device, a water sensor adapter is required (adapter only available in Protect All-In-One Smart Sensor 3-pack, available separately).