SAFE TECH Wireless Interlinked Smoke Alarm, Fire Alarm Smoke Detector with Battery Powered and 10 Year Life,4 pack : Amazon.co.uk: DIY & Tools
Wireless Interlinked Smoke, Heat and CO Alarm with Longlife Battery Kit - Firehawk W Series - £186.79 inc VAT
Bosch Smart Home Battery-powered Smart smoke alarm | DIY at B&Q
Hispec Photoelectric 220-240V Mains with 9V Backup Smoke Alarm | West Midland Electrics
1 x F1 Smoke Detector Wireless Interlinked (RF) – 10 Year Battery CE EN14604 UK, Scottish and Welsh 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