Siemens 40/40I-122SF Flame Detector

40/40I, a multi spectrum based on three IR bands (IR3), detects fuel and
gas fires at long distances with the highest immunity to false alarms. The 40/40I IR3 can detect a 1 ft2 (0.1m2 ) gasoline pan fire at 215 ft (65m) in less than 5 seconds.The 40/40I is the most durable and weather resistant flame detector currently on the market. Its new features include a
heated window, to eliminate condensation and icing; HART capabilities for digital communications; lower power requirements; and a compact, lighter design