Silent Knight SD500-ARM 2-Wire Smoke Module 23/01 i3 heads plug into the

i3 heads plug into the base with a simple Stop-Drop 'N Lock action

two additional outputs

and are direct replacements for the FSP-851 Series

These door holder-releases have a holding force of approximately 25 Lbf (111N)

The Edwards SD-T42 air sampling tube works with the Edwards Super Duct detectors

Silent Knight SD500-ARM 2-Wire Smoke Module 23/01 i3 heads plug into theSD500 ARM addressable relay modules add two Form C contacts to the Farenhyt addressable system. The contacts are rated at 2A at 30V DC or 0. 6A at 120V AC. SD500 ARM addressable relay modules allow you to control a wide variety of normally open and normally closed applications, including elevator recall, door closing, fan operation, and auxiliary notification. Because the relay modules are addressable, these applications can be located at any point in