The Maxitrol SC11-B is a sophisticated signal conditioner that accurately converts and amplifies sensor data in HVAC systems. This device is essential for improving the efficiency and dependability of HVAC systems since it can receive input signals between 4 and 20 milliamperes (mA) and output signals between 0 and 10 inches and 0 to 20 inches. https://www.partshnc.com/sc11-b-maxitrol-signcond-4-20ma-0-10in0-20out