RadioLINK Panel Interface. Connects into Fire Alarm Panel. 12-24V DC powered · · · Links Aico alarms to a Panel System · · 12-24V DC powered – from the panel system · · RadioLINK Wireless interconnection · · 5 year guarantee · · Creates a two-way communication between Aico alarms and a panel system · · Connects wirelessly with all other Aico wireless interconnection products and is hard wired into the Panel system · · Aico EI413