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-> System Sensor D4120 4-Wire Duct Smoke Detector D4120
System Sensor D4120 Mfg # D4120 Price $99.99
Ref: D4120
4 wire photoelectric duct smoke detector. Square or rectangular footprint. 24 or 120 volts. 100 to 4000 FPM. Max temp 158F. 1 SPST N/O alarm, 2 SPDT auxilliary and 1 SPST N/O supervisory contacts.
Price: $99.99
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