Flame Detection / 20/20 Series 20/20 Series The 20/20MI is an economical and compact Triple IR (IR3) Flame Detector with the highest immunity to false alarms, in a rugged stainless steel housing 20/20MI-1 The 20/20MI is an economical and compact Triple IR (IR3) Flame Detector with the highest immunity to false alarms, in a rugged stainless steel housing 20/20MI-3 Ex proof toxic and flammable fixed Gas detector with Modbus comunication 20/20ML