Orbis I.S. Optical Smoke Detector

Product Overview

The Orbis I.S. Optical Smoke Detector works using the light scatter principle, and is ideal for applications where slow burning or smouldering fires are likely.


  • Reduces false alarms.
  • Recommended for early warning of fire in most areas.
  • Improved sensitivity to black smoke.
  • Compensation for slow changes in sensitivity.
  • Algorithms for reliability of alarm.

Approvals: EN54-7


Operating voltage 14 to 28 VDC
Quiescent current 85?A at 24 VDC
Size inc base 100mm D x 50mm H
Operating temperature -40°C to +70°C (no icing)
Class T5: – 40°C to +40°C
Class T4: – 40°C to +60°C
Relative humidity 0 to 98% (non condensing)
IP rating IP23D (indoor use)
Weight 75 grams (135g inc base)

Item Numbers


Orbis I.S. Optical Smoke Detector