| Brand | System Sensor |
|---|---|
| Type | Smoke Detectors |
| Model | D4120 |
| MPN | D4120 |
Check the listing for details. System Sensor InnovairFlex D4120 4-Wire Duct Smoke Detector MISSING LEFT PANEL. Condition: For parts or not working. Listed at 60.00 USD. Item has not been used and is functional but is missing the left side plastic cover panel. The missing piece is shown in the 3rd listing photo for reference. This would be an ideal purchase for replacing an existing non functioning unit where the left plastic cover can be pulled from the current unit to make this a complete functional unit.
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