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The Expert Pro selectively displays battery voltage, charge and discharge current, consumed ampere hours, remaining battery capacity and time remaining. Using a large clear backlit LC Display and an intuitive user interface, all parameters can be recalled at the touch of a button. The Expert Pro has many innovative features, like a second battery input, a shunt selection feature, storing a wide range of history events and extensive alarm relay programming. The potential free alarm enables you to run a generator when needed or to turn off devices when the battery voltage exceeds programmable boundaries.