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First Alert-Photoelectric & Ionization Smoke Alarm with Battery Backup-Hardwired
OptiPath 360 Technology™ Patented technology, the OptiPath 360 Technology™ provides 360 degrees of direct access to the smoke sensor, making it more effective. Interconnectable The First Alert 3120B can be connected to other compatible alarms for larger spaces and more protection. Latch Alarm Indication
Description
OptiPath 360 Technology™ Patented technology, the OptiPath 360 Technology™ provides 360 degrees of direct access to the smoke sensor, making it more effective. Interconnectable The First Alert 3120B can be connected to other compatible alarms for larger spaces and more protection. Latch Alarm Indication