LINKD Alarms | Wireless Interlinked Smoke, Heat & Carbon Monoxide Alarms Introducing the LINKD Alarms range of wireless interlinked fire alarms. Offering you the latest in fire safety protection for your home, office or business. All our alarms wirelessly interlink with each other. If one alarm is triggered - ALL alarms will sound off together. This ensures all areas of your property are protected and all occupants are notified during an emergency Our alarms are available to purchase in different sized bundles depending on your exact requirements. This bundle contains:- 3 x Smoke Alarm1 x Heat Alarm Additional alarms can be purchased (use the above options) at any time and linked with your existing bundle.