The Multiplus is a powerful pure sine wave inverter, an advanced battery charger utilising adaptive charging technology and a high-speed AC voltage transfer switch in a single compact housing. In the event of a mains fault or if the shore power or on-board generator is interrupted, the Multi's inverter is automatically switched on and takes over the supply to the connected loads. The switchover happens so quickly (in less than 20 milliseconds) that uninterrupted operation of computers and other electronic devices is guaranteed.