Connects wirelessly with all other Aico wireless interconnection products and controls all the alarms from one place. Recommended for smoke, heat and carbon monoxide alarms on the same system to tell which alarm has sounded, identify which danger is present and the action to take. Contains LEDs which clearly display which danger has activated the alarm. Flexible and user-friendly, allowing the user to remotely Test, Locate and Silence alarms in the system. Powered by a tamper-proof, sealed-in lithium cell for wire-free installation with a 10-year life. Wireless connection uses RadioLINK interconnection technology. 10-Year Sealed Tamperproof Lithium Integrated Battery For Use with 12 Alarms Test, Locate & Silence Button LEDs for a Visual Display of Alarm Activation Completely Wire-Free Installation Hub Not Required 10-Year Sealed Tamperproof Lithium Integrated Battery For Use with 12 Alarms Test, Locate & Silence Button LEDs for a Visual Display of Alarm Activation Completely Wire-Fr...