Hansentek’s AN6400 Spark Detection and Extinguishment System is fully expandable up to 64 zones, yet is still competitive even for single zone systems. Our infra red spark detectors can detect and signal the presence of a spark in less than 1 millisecond. This quick response, coupled with our high-speed solenoid ensures a full water spray pattern is established across the entire duct in a quarter of a second. The AN6400 was designed to give you the utmost in protection, information and control with minimum service requirements. The system is Factory Mutual Approved.