I live in Newcastle, about 3 miles from Auburn and about 25 miles from Sacramento. I'm in the valley where all the smoke from these fires is. I saw a sattellite picture of this part of Cali on the news last night and you couldn't even see the ground for miles around cause it was covered with a blanket of smoke. What on earth is causing these hundreds of fires? It can't be from heat cause I've experienced much hotter summers here than this and this never happened.
There are three basic 'Fire Sensors` commercially available and in use today. Heat detectors, (fusible links etc.), Smoke Detectors, (Photo Electric or Ionization), Infra Red Detectors, (Special Photo Electric). They are used in different situations, sometimes in combination. The use of the area to be protected determines the best type for the application. For safety, Fire Detection systems are generally Supervised circuit` or more rarely, 'alarm on open circuit` type systems. The design has been done for you, tested by experience, (sometimes bitter), and most Codes actually prohibit 'ad hoc` systems. Read your fire code before proceeding.
They must have been casing out the police so they could recognize them.
