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Fire alarm bell, CB-6B 95 dB electric alarm bell, 150 mm/5.9 inches, safety alarm bell for school, home factory, loud doorbell, chime, alarm multipurpose bell (DC 12 V) : Amazon.de: DIY & Tools
Kidde - Smoke & Carbon Monoxide (CO) Alarms; Alarm Type: Smoke; Power Source: Battery; Sensor Type: Photoelectric; Electrochemical; Mount Type: Ceiling; Interconnectable: Non-Interconnectable; Battery Chemistry: Lithium-Ion; Maximum Decibel Rating ...
