The Johnson Controls M4-CVM03050-0 VAV Controller is a 24VAC powered unit designed for HVAC and refrigeration systems. This controller, manufactured by Johnson Controls in Mexico, is compatible with their brand and offers reliable VAV control for efficient indoor climate management. With dimensions of 8 inches in length and width, and 4 inches in thickness, this unit weighs 2 lbs and operates on a single phase power source. Perfect for commercial and industrial applications, this controller ensures precise control over heating, ventilation, and air conditioning systems.