Optical smoke alarm, with a high performance optical smoke sensor, for detecting slow, smouldering fires. In addition, the smoke chamber design, integrated insect screen and automatic dust compensation help reduce the risk of false alarms. * Interlinked via Wireless or when Hardwired (Wireless Module Required) * 230V AC Mains-Powered with Battery Backup * 10-Year Sealed Tamperproof Lithium Integrated Battery * 85dBA Alarm at 3m * Test/Hush Button * Built-In AudioLINK Data Extraction Technology * Easi-Fit Base
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