Positions = NONE', 'Advanced programmable alarm Relay', 'Auto sensing battery voltage inputs', 'Auto sensing battery voltage inputs, Large backlit LCD Display', 'Communication/expansion port', 'Displays time remaining', 'Displays voltage, current, consumed amp hours and remaining battery capacity', 'Includes Xantrex LinkPRO Battery Monitor', 'Link lite Battery monitor', 'Provides critical information about the status of your battery bank', 'Quick nut mounting construction, Programmable alarm relay', 'Read your battery bank like a fuel gauge', 'Read your battery bank like a fuel gauge, Secondary battery bank voltage monitoring', 'Shunt selection capability enables flexible system integration', 'Stores a wide range of history events in internal memory', 'Two battery inputs']