AICO Ei 166 Mains Powered Optical Alarm with Lithium Battery Back-up & Hush 226

More responsive to slow smouldering fires Advanced suppression and calibration technology Large volume high performance optical chamber with proven extended life capability. Fitted with insect resistant screen Hush button for false alarm control Separate mains and warning LEDs Auto self-test feature continually monitors the sensor every 40 seconds for additional safety 10 year+ Rechargeable Lithium Cell back-up designed to outlast the alarm Precision charging circuit ensures peak cell performance Low power cell warning in the event of a mains or cell failure Interconnects with other Ei Professional mains powered smoke and heat alarms Easi-fit mounting plate - simpler and quicker to install 5 year guarantee includes rechargeable cells

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