Mains Powered Combined Heat and Carbon Monoxide Alarm with Self-Charging 10 Year Back-up Battery - Aico Ei3028 - £75.59 inc VAT
Scondaor Carbon Monoxide Alarm Detector EN 50291 Certified, CO Alarm Detector with Digital Display, Battery Powered, 10 Year Sensor : Amazon.co.uk: DIY & Tools
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