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4010 SFIO CPU BD | Discontinued model
Apollo 58000-400MAR Discovery Marine Heat Detector SIL2
Honeywell Home YTHM1004R3000/U T10+ Pro Smart Thermostat with EIM
Normally open without control mounted
Simple DIP switch settings for easy configuration
Space Age SSU-SM-501-N SS-PHOTO-T 4010 SFIO CPU BD |The SM 501 Series Duct Smoke Detector provides early detection of smoke and products of combustion present in air moving through HVAC ducts in Commercial, Industrial, and Residential applications The unit is designed to prevent the re circulation or spread of smoke by air handling systems, fans, and blowers. Complete systems may be shut down in the event of smoke detection. Features Ionization and Photoelectric versions available Operating voltages