
Esser
Honeywell Esser 781443 Duct Type Detector
Product Code: 781443
The Esser 781443 duct type detector module is used together with venturi tubes numbered 781446, 781447 or 781448. The body section is mounted outside the air duct, while the venturi tube samples air from inside the duct. The ventilation system is the fastest route for smoke to be carried throughout the building during a fire; duct detection stops this spread early by triggering the fan shutdown scenario.
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