2061009 is a part number for a Diathermic Oil Electronic Control Unit (DECU) made by Thermax, a global energy and environment engineering company. The DECU is designed to provide smart, efficient, and automated control of Diathermic Oil systems. It is typically used in applications such as district heating and cooling, and it helps to reduce energy costs and greenhouse gas emissions by optimizing heat transfer and reducing the amount of energy needed to operate the system. This part consists of a main plate, a control panel, two coils, three relays, and two temperature sensors. It provides intuitive, adjustable, and programmable controls that can be automated.