Johnson Controls C450CCN-4 Control

Johnson Controls C450CCN-4 Standard Modular Control, 4 Button Touchpad UI, Relay Output, LCD Display, Provides Two Relay Outputs ( SPDT Line Voltage Relay ) for SPDT Control, 24 Vac External Supply Power, 0-5 Vdc for Humidity Sensors and Static Pressure Transducers

C450CCN-4 is the direct replacement for C450CCN-2