Profile: Bit Veda Services specializes in providing fire fighting solutions including designing and installation services. Automatic addressable fire detection system consists of detectors and panels. This detector senses cause of fire, and then gives the signal through the alarm system. Carbon dioxide extinguishers are used for class B and C fires. These extinguishers contain carbon dioxide and non-flammable gas which are highly pressurized. Class A extinguishers are for ordinary combustible materials such as paper, wood, cardboard, and most plastics.