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Simplex 4098-9755 Compact air duct sensor housing with clear cover for smoke detection. Includes factory-installed TrueAlarm photoelectric smoke sensor with:Individual sensor information processed by host control panelDigital transmission of analog sensor values via IDNet or MAPNET IIProgrammable sensitivity, environmental compensation, and status monitoringModel: 4098-9755 Basic duct sensor housing (no relay output) powered by IDNet/MAPNET II. Ideal for HVAC systems. Google & Mercari optimized.
| Category | Vintage & collectibles > Electronics > Other |
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