Choose from the following bundle sizes | 1x Heat Alarm, 1x Smoke Alarm • 1x Heat Alarm, 2x Smoke Alarm • 1x Heat Alarm, 3x Smoke Alarm Wireless Interlinked Alarms | All LINKD Alarms wirelessly interlink with each other. If one alarm is triggered - ALL alarms will sound together. This ensures all areas of your home are protected and all occupants are notified during an emergency Scottish Law Compliant | Our interlinked smoke and heat alarms are 100% compliant with the recent change in Scottish Law. Certified to:- |