All 3 main types of Talentum Flame Detectors, IR2, IR3 and UV/IR2 have similar performance when it comes to detecting flames, but each has its own ‘specialist’ use for which it is best suited. Each type of Flame Detector can detector a flame from any source apart from Magnesium and Subpar which can be detected with special versions of the Flame Detectors. The Flame Detectors have a Fire and a Fault relay and need a flickering flame to activate.