3x Interlinked Mains Smoke Alarm 1x Heat Alarm Detector Battery Back Up Linked | eBay
1 x Smoke Detector Wireless SMART (RF & WiFi) – 10 Year Battery CE EN14604 UK, Scottish and Wales Fire Regulation – Smart Detect UK
Wireless Interlinked Smoke and Heat Alarm with 10 Year Battery Life, EN14604, CE Certified, Interconnected Fire Alarm, Low-Battery Alert.3 Pack : Amazon.co.uk: DIY & Tools