Most radio-interlinked techniques can connect up to 15 alarms in a single network, providing in depth protection for larger sized properties with numerous floors and rooms. A lot of good fire alarms also integrate with safety programs and voice assistants, allowing for you to monitor your house from any where. https://www.thesafetycentre.co.uk/blog/ems-wireless-firecell-systems-from-the-safety-centre/