2-in-1 Protection: Keep your home safe from both fires and carbon monoxide with a single alarm featuring both photoelectric and electrochemical CO sensors; these sensors operate independently to instantly alert you to hazardous smoke or CO levels, making it simple to protect your family from two deadly threats at once Wi-Fi Connection: Manage this battery-operated smoke and CO alarm directly via the X-Sense Home Security app over 2.4 GHz Wi-Fi, with no base station needed Tap in the App to Silence: Use the app to instantly silence the alarm without the hassle of trying to reach the test/silence button on the smart combination detector Get Alerts Anywhere: Monitor your home remotely and receive immediate app notifications in the case of alarms, low battery, faults or more, giving you extra confidence when you leave the house Device Sharing: Share your smoke and CO detector with up to 12 other users through the X-Sense Home Security app so family, friends and neighbors can get alerts too Precautionary CO Alert: Get an early warning if CO levels exceed 100 ppm, allowing you to take action before a critical situation occurs