【ADVANCED BUNDLE】 3 x Smoke Alarm, 1 x Heat Alarm, 1 x Carbon Monoxide Alarm 【PRE LINKED】 This bundle has been ‘Pre Linked’ for your convenience. There is no setup required. Simply power the alarms on, test them and then fit them around your home! Done in seconds! 【WIRELESS INTERLINKED ALARMS】 All LINKD Alarms wirelessly interlink with each other. If one alarm is triggered - ALL alarms will sound off together. This ensures all areas of your home are protected and all occupants are notified during an emergency【NEED ADDITIONAL ALARMS?】 Purchase additional alarms using the options above. Additional alarms can be linked with alarms purchased in a bundle. Up to 30 alarms can be linked together in total 【COMPLIANT WITH SCOTTISH, ENGLISH & HOLIDAY LET REGS】 Our interlinked smoke and heat alarms are 100% compliant with the new Scotland Regs (Feb 22), England Regs (Oct 22) & UK Holiday Let Regs (Oct 23). Certified to BS EN14604:2005, BS 5446-2:2003 & British Kitemark EN 50291-1 & Grade F1 standards 【BEWARE】 Competitor systems do not have the correct certification and your home will not be compliant! 【10 YEAR BATTERY LIFE】 All our fire alarms have a built-in & tamper proof 10 Year Lithium battery. This spares you the hassle of frequent battery changes whilst giving you peace of mind that your home is protected 24/7, even during power cuts 【RELIABLE PERFORMANCE】Our interconnected alarm system creates a ‘Mesh’ style network where each alarm is connected to all other alarms. This Mesh network provides a more stable and reliable wireless performance and greater coverage range of up to 100m compared to competitor systems 【CUTTING EDGE TECHNOLOGY】 Our smoke alarms use the latest photoelectric sensor technology which is 5 times more accurate and reacts faster than conventional sensors. Our heat alarms utilise an ultra sensitive temperature sensor that reacts instantly when the ambient temperature exceeds the safe limit. Our CO alarms use the latest electrochemical sensor technology to deliver the ultimate protection and reliability 【EASY INSTALLATION】 This bundle has been ‘Pre Linked’ for your convenience. There is no setup required. Simply switch the linked smoke & heat alarms on, test them and then fit them around your home! Adhesive pads & screws are included with each alarm making installation a breeze. There is no need for special tools or to hire an electrician 【UK COMPANY】 Place your trust in an experienced and fully insured UK Alarm Company. We offer fast and friendly, UK based, Email & Phone support that are waiting to assist you with the set up and installation of your alarm system. We offer a no-hassle warranty on all our products 【BEWARE】 Other alarm systems on Amazon are sold by foreign companies offering no warranty & after sales support, leaving you with faulty alarms that are dangerous and non-compliant., Manufacturer: LINKD Alarms