*Onsite services is set by technician and cause of situation; may entail shopper entry to inside system and several or prolonged sessions. If concern is roofed by warranty rather than resolved remotely, technician or portion will be dispatched, normally in just 1-two business days pursuing completion of remote analysis. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​... https://www.firesense.co.uk/type/addressable-fire-system/addressable-accessories/