System Sensor D4120 Duct Smoke Detector
System Sensor D4120 Duct Smoke Detector
Model: D4120
A four-wire photoelectric duct smoke detector for compatible fire-alarm and HVAC designs. Confirm system compatibility, sampling-tube selection and installation requirements before ordering.
$392.02$336.90Save 14% (estimated; tax and availability confirmed with your quote)
Commercial and multi-unit projects typically qualify for volume pricing -- confirmed with your quote.
Installation
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A 2-wire photoelectric smoke detector from System Sensor's i3 Series, with the mounting base included -- a conventional (non-addressable) detector for zone-wired fire alarm systems.
An indoor 2-wire LED horn/strobe notification appliance from System Sensor's L-Series, wall-mounted and marked FIRE, for audible/visible alarm notification in occupied spaces.
An outdoor-rated, compact wall-mounted LED horn/strobe from System Sensor's L-Series, for notification coverage on exterior walls and covered outdoor areas.
A red wall-mounted LED strobe for compatible fire-alarm notification circuits. Device selection and placement should follow the project design and required notification coverage.