Activates alarm when set temperature is achieved any where alongside the cable; fitted to locations in which entry is tough or hazardous.
Deluge sprinklers—sprinkler heads are always open up plus the pipes fill with https://patch.com/north-carolina/raleigh/classifieds/gigs-services/467764/safeguarding-lives-and-property-all-american-fire-protections-quarter-century-of-excellence