1. HVAC sensors

2. Smoke detection

3. Zone 1 Zone 2 Spread of fire gases in ventilation ducts

4. Zone 1 Zone 2 Spread of fire gases in ventilation ducts

5. Zone 1 Zone 3 Zone 2 Smoke detector Fire damper Protection against spread of fire gases in ventilation ducts

6. New smoke detector

7. Direct flow through the detector

8. New detector housing

9. Better flow Easier installation New venturi pipe Patented UG-4, replaces UG-2

10. Flow analysis of Uniguard Superflow

12. www.calectro.com For more information visit