Increase your sense of security with Tellur's WiFi Smart Smoke Sensor. Having an intelligent double-checking algorithm, the device senses smoke and temperature changes and triggers the alarm. When it detects smoke, the sensor alerts you through an acoustic alarm, a light indicator and a push notification is sent to your smartphone. You will also be notified on your smartphone when the batteries are running low or when someone tries to dismount the device. The WiFi Smart Smoke Sensor works with a CR123A DC 3V battery (included) and has a low energy consumption. The sensor integrates perfectly in the Smart Home ecosystem and allows you to check its working status and history records by simply accessing the Tellur Smart app from your smartphone.