Fire rated products are flame resistant / fire retardant and offer you some passive resistance but are not intumescent and do not develop when heated. These should be preferable for normal construction reasons than conventional goods that have no ranking of any type. Wired techniques are actually a longstanding go-to https://www.thesafetycentre.co.uk/blog/ems-wireless-firecell-systems-from-the-safety-centre/