FireAngel FS1521W2-T Smart RF Radio Module Wireless Interlink 10 Year Battery

Radio module for creating a wireless or hybrid single network throughout a property. Quickly and easily interlink multiple alarms wirelessly. Enables all alarms to sound when one sounds. Features transmitter and receiver in each module for high performance. Simply fits into base of alarm. Compatible with FireAngel Specification (Smart RF Ready) smoke, heat, CO and assisted living devices. Wireless Range: 30m For Use with 50 Alarms 5 Year Manufacturer's Guarantee (T&Cs Apply) - Manufacturers part number: FS1521W2T