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Housegard Pebble Link wireless smoke detector, 2 pcs When one alarms, all alarm! This way you get a warning quickly regardless of where the fire starts. You can connect up to 12 smoke detectors wirelessly via an 868 MHz connection.

• Alarm sound: 85 dB / 3 m
• Chainable, frequency 868 MHz
• Battery life approximately 10 years
• Break function
• Two-piece package