Triple-IR Flame Detectors


The Sierra Monitor 3600-I Triple IR (IR3) Flame Detector detects fuel and gas fires at long distances with the highest immunity to false alarms. The 3600-I IR3 can detect a 1ft2 (0.1m2) gasoline pan fire at 215 ft. (65m) in less than 5 seconds.  The 3600-I 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.

Key features of the Model 3600-I IR3 Flame Detectors are: 

  • Triple Spectrum Design - for long distance detection and high false alarm immunity 
  • Sensitivity Selection - to ensure no zone crossover detection 
  • Automatic and Manual Built-In-Test (BIT) - to assure continued reliable operation


  • detects fuel and gas fires
  • weather resistant
  • HART capabilities

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