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The mode of detector may be:

  • Optical smoke only detector (sensitivity High, Normal or Low)
  • HPO smoke detector (sensitivity High, Normal or Low)
  • Heat only rate-of-rise (A1R) detector (no sensitivity selection)
  • Heat only fixed temperature 60oC (A2S) (no sensitivity selection)
  • Optical (sensitivity High, Normal or Low) combined with heat fixed temperature 60oC (A2S)
  • HPO (sensitivity High, Normal or Low) combined with heat fixed temperature 60oC (A2S)
Applications

Safety At Work, Testing Smoke Detector