The HazardWatch Fire and Gas Detection System is an innovative, modular system that combines highly reliable programmable logic controller (PLC) technology with General Monitors' advanced gas and flame field devices. It is highly scalable, making it suitable for small systems to large plant-wide applications. Offering intelligence, flexibility and reliability, the HazardWatch System's controller hardware configuration and software has been tested by Factory Mutual to verify NFPA 72 compliance. This includes certification for central station monitoring, as both a fire alarm panel and gas controller, for fault tolerant digital communications and as a releasing control panel.