All 2-Wire
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System Sensor
SKU: SYSD2
System Sensor D2 InnovairFlex 2-Wire Photoelectric Duct Smoke Detector, -4 to 158F
Item Preference Type: StockLog in for pricing -
Space Age Electronics
SKU: AIRSSU55000335DCT
Photoelectric Replacement Sensor For The Rt-3000-P, Sl-2000-P, And Sm-501-P Duct Smoke Detectors.
Item Preference Type: Special OrderLog in for pricing