The I-9104 Intelligent Ultraviolet Flame Detector capable of detecting the ultraviolet (UV) rays emitted by a burning substance, ideal for areas where you would expect heat and smoke but not flames such as boiler and generator rooms, also suitable for high hazard applications such as petrochemical plants, munitions factories and other areas where flammable or explosive liquids or solids are handled or stored. The I-9104 sensor provides an ultraviolet photosensitive tube, with highly sensitive, reliable, dust-resistant, corrosion-proof and moisture-resistant qualities. The detector will initiate an alarm when a flame > 3cm is detected at a distance of up to 6 meters, with a total effective range of up to 12 meters.