They are slice Withered smoke alarm bundle bison slap theory
Wireless Interlinked Smoke, Heat & CO Alarms | Build your own Bundle | LINKD Alarms
Bellman Visit Home Smoke Alarm Wireless Alerting Bundle | Connevans
Aico smoke, heat and CO2 detector Trade Bundle | Electricsandlighting.co.uk
Bellman Visit Safe Value Bundle - AmplifiedTelephones.co.uk
Interlinked Smoke Alarm Heat Alarm Bundle, 10 Years Battery Photoelectric Smoke Detector with Remote control, Silence Button, LED Indicator, Flat Smoke Heat Detector for Home : Amazon.co.uk: DIY & Tools
Homematic IP starter set smoke alarm XS bundle | Lights.co.uk
AJ Interlinked Heat Alarm & Smoke Alarm Basic Bundle, 10-Year Tamper-Proof Battery - SAFE-TECH - A British Brand Specialising in Home and Safety Protection
Hispec HSA/BP/RF10-PRO smoke detector with 10 year lithium battery - bundle of 4 | eBay
AJ Interlinked Heat Alarm & Smoke Alarm Basic Bundle, 10-Year Tamper-Proof Battery - SAFE-TECH - A British Brand Specialising in Home and Safety Protection