Work Area Protection introduces the Arrowmaster Pro-Line mast-mount arrow board. The 360-degree rotating center mast allows flexible deployment compared to “fixed” lifting arm arrow boards. The center mast design provides increased stability in both the travel and display position. Long-lasting LED lamps and a field-proven highly efficient solid state controller provide years of reliable service. The system is designed to provide up to 30 days of uninterrupted service from the battery bank, consisting of two readily available 12-volt batteries.