The Atexon® SD300-EX (standard) and SDF300-EX (daylight insensitive) Spark Detectors are designed to detect ignition sources such as hot particles and burning embers, in a conveying path such as a duct, chute, or mechanical conveyor, and signals the Atexon Spark Detection System to initiate a water spray, helping prevent the ignition source from starting a fire or explosion.