| Model | D4120 |
|---|---|
| Type | Smoke Detectors |
| Brand | System Sensor |
| MPN | D1420 |
Check the listing for details. SYSTEM SENSOR D4120 SENSOR 4 WIRE PHOTOELECTRIC DUCT SMOKE DETECTOR. Condition: Used. Listed at 59.96 USD. System Sensor InnovairFlex D4120 4-wire photoelectric duct smoke detector, used to detect smoke within HVAC ductwork. Purpose: Designed to shut down HVAC fans upon detecting smoke to prevent its spread throughout a building.
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