Johnson Controls System 450 Control Module w/ LCD, and 2 SPDT Output Relay

The System 450 Series Modular Controls are the next generation of Johnson Controls/ PENN® digital electronic control, expansion, and power modules designed to provide accurate, cost-effective, compact, custom control systems for a wide variety of Heating, Ventilation, Air Conditioning, Refrigeration (HVACR) and commercial/industrial process applications. The System 450 control system is designed to replace System 350 control system and System 27 and provide many additional features and benefits with less than a dozen model variations. All System 450 modules are multipurpose and field configurable out-of-the-box; each module is designed for use in temperature, pressure, and humidity systems. In fact, a System 450 control system can be easily assembled and configured to monitor and control temperature, pressure, and humidity simultaneously. A single System 450 control module can be set up as a stand-alone control or connected to expansion modules to control up to 10 outputs based on the input from up to 3 co...