Sm120X Wiring Diagram. Pt100 temperature sensors use the four wire measurement principle. Relay / power supply module. Kidde Smoke And Carbon Monoxide Alarm Wiring Diagram Wiring Schematica from wiringschematic.blogspot.com Web a wiring diagram is a simplified standard photographic depiction of an electric circuit. Web the kidde sm120x can be used to activate auxiliary warning devices […]