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: 3x Smoke, 1x Heat & 1x Carbon Monoxide Alarm. All our alarms feature a 10 Year Li-ion battery. They are compliant with Scottish & English regulations. Our alarm sound levels are 85dB / 3m The heat alarms are designed to trigger between 54 and 70 degrees Celsius. The sensitivity and trigger times for our CO alarms are: less than 50 PPM, no alarm. 50 to 100 PPM, alarm after 80 minutes. 100 to 300 PPM, alarm after 30 minutes. 300 PPM and above, alarm sounds and triggers the other interconnected alarms. Place your trust in an experienced and fully insured UK Alarm Company. We offer fast and friendly UK-based Email & Phone support that is waiting to assist you with the set-up and installation of your alarm system. We offer a no-hassle warranty on all our products.