MARCO electronic unit for oil change

Compact electronic unit for oil change for fixed installation on vessels. Used to drain and fill up all onboard applications such as generators, engines, gear drive and gangplanks.
Electronic control adjusts the pump motor speed depending on the oil viscosity/temperature and increases revolutions during priming for maximum suction.
The system automatically stops working when it runs out of liquid, in case of short circuit and after 30-min operation.