Uniguard UG-3-NS-AOS duct smoke detector

UG-3-NS-AOS duct smoke detector

  • Addressable
  • Automatic sensitivity adjustment: fewer false alarms and longer lifespan
  • Reliable alarms
  • Immune to transient interference, insects, etc.
  • Quick and simple installation
  • Flow indicator with high sensitivity
  • New venturi pipe shape gives max. venturi effect
  • Foolproof pipe mounting, cannot be fitted incorrectly
  • Complete with pre-assembled cable entries
  • Test hole in cover
  • Patented

Uniguard has been developed to detect smoke in ventilation ducts and consists of a smoke detector, mounted in an adapter system where both tube and housing are specially designed for optimum airflow through the smoke detector.
The system fulfills all the requirements for good fire detection with airflow speeds from 0.2 m/s to 20m/s.
A venturi pipe with auxiliary fan should be used to detect smoke in situations where ventilation is turned off and there is limited airflow in the duct.
UG-3-NS-AOS is used together with control unit KE-1000 to control fire dampers and fans, activate acoustic and/or optical alarms etc.
The detector is equipped with a bayonet mount, which makes it easy to replace.
The detector’s address is set with a DIL-switch. The DIL-switch allows 32 addresses to be set. When an alarm occurs, the detector’s address is shown on a display. The detector contains an intelligent monitoring circuit that adjusts the sensitivity to give optimum functionality during the whole life of the detector. When the detector can no longer compensate for environmental influences, a service alarm is indicated.
Uniguard Superflow has 4 pre-assembled Klikseal-type IP67-approved cable entries with automatic load anchorage for cable diameters 4 – 11 mm.


The venturi tube is made of aluminium and can easily be shortened to suit the diameter of the duct. Hole Ø is 38 mm. For insulated/circular ducts with mounting bracket, Ø is 51 mm.
When installation is complete, the detector should be tested. Test the detector with smoke from a smoldering cotton thread.

NB: When installing outdoors or in cold attics etc. the detector should be insulated from the surrounding air by with e.g. our weatherproof housing UG-COVER.

Please view the datasheet

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