Xantrex 84-2030-00 LinkLITE Battery Monitor; Displays voltage, current, consumed amphours and remaining battery capacity; Large backlit LCD Display; Read your battery bank like a fuel gauge Provides critical information about the status of your battery bank Secondary battery bank voltage monitoring, Auto sensing battery voltage inputs Shunt selection capability enables flexible system integration Quick nut mounting construction, Programmable alarm relay Stores a wide range of history events in internal memory