MULi 6S EX is a sensor for checking the voltage of Li-XX batteries that checks the voltage by service connector of every single cell. It allows you to check the voltage up to 6 Li-XX cells. You can check the voltage of every single cell, store its history (maximum, minimum), the total voltage of the whole battery, and the sensor can also give notice of exceeding selected parameters. Data from the sensor are transferred via DUPLEX system.