Pay in 4 interest-free payments of $19.68 Learn more
Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
self-diagnostic
Normally open without control mounted
burglar or general signaling device
Simplex 4090-9106 Zone Adapter Module for Class A monitoring of 2-wire initiating devices
Space Age SSU-SM-501-N SS-PHOTO-T self-diagnosticThe SM 501 Series Duct Smoke Detector provides early detection of smoke and products of combustion present in air moving through HVAC ducts in Commercial, Industrial, and Residential applications The unit is designed to prevent the re circulation or spread of smoke by air handling systems, fans, and blowers. Complete systems may be shut down in the event of smoke detection. Features Ionization and Photoelectric versions available Operating voltages
US$ 115.00
US$ 82.50
US$ 163.00
US$ 83.35