Digital Volt and Ampere meter for Mass 24/75, Mass 24/100 and Mass 24/100-3ph, in front panel.Professional users will benefit from a front display with GMDSS alarm functions.GMDSS stands for Global Maritime Distress and Safety System, an internationally agreed-upon set of safety procedures, types of equipment, and communication protocols that is a requirement for the SOLAS (Safety Of Life At Sea) convention and uses DSC and satellite communication.Battery voltage and current are displayed on the digital panel.Technical FileUser Manual .input-wrapper a { text-decoration: none; / Removes underline / background-color: transparent; / Ensures no background color / } .input-wrapper a:hover { text-decoration: underline; / Adds underline on hover / background-color: transparent !important; / Removes grey highlight / }