Honeywell Analytics 301-EM-RFSA-CA1 Controller w/ Horn & Strobe, Type 1 Canada, Gas Detection Network Expansion Module for 301C

Honeywell Analytics 301-EM-RFSA-CA1 Controller w/ Horn & Strobe, Type 1 Canada, Gas Detection Network Expansion Module for 301C. The Honeywell 301-EM Series Gas Detection Expansion Module are designed for specific refrigerant monitoring applications. They are directly compatible with the ECFX series.