Smoke Alarm BR 8221 extra longlife

• Photoelectric detector, tested in accordance with EN 14604.
• 10 years of operational life without changing battery.
• 3 V lithium battery fixed in devices for constant operational readiness.
• Automatic activation of battery on commissioning.
• Optical function display, with test button for the functional check.
• Inclusive mute switching function.
• Shrill acoustic alarm (85 dB).
• Acoustic signal when the battery is low.
• Includes mounting materials.
• Very compact construction: Height 30 mm, diameter 85 mm.
• In colourful display-packaging.
• Height x Diameter: 30 x 85 mm
• Signal sound: 85 dB
• Battery type: 1 x 3 V