<http://schema.org/description>
"Electrics UK Red Arrow Linkable Photoelectric Ionisation Smoke Alarm Battery &amp; Mains Powered - Red Arrow Linkable Photoelectric Ionisation Smoke Alarm Battery &amp; Mains Powered This is a high quality, slimline ionisation smoke alarm fitting that is mains powered and comes with a long life alkaline battery providing standby power supply for up to 4 years. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.lightupuk.co.uk/fire-and-security/smoke-and-heat-detectors/red-arrow-linkable-photoelectric-ionisation-smoke-alarm-battery-mains-powered>