Analog smoke detector with isolator 4401I


  • State of the art detector for highest safety
  • Built-in short circuit isolator
  • Supports auto-addressing
  • Nuisance alarms reduced by up to 46% by using Advance mode:
    • Variable sensitivity and time delay based on smoke changes just before and after fire alarm level has been reached
    • A learning function will ensure that the most suitable fire alarm algorithm is always used
  • High-tech mesh net prevents dust and insects to enter the detection chamber
  • Installation date and automatic service signal


  • Operating temperature: - 10 to +50 °C
  • Ambient humidity: < 95%
  • Dimensions: Ø 102 x 34 mm
  • Weight: 75 g
  • Red LED