Work Area Protection's Police Mini-Message Board is a trailer-mounted 4-foot by 8-foot display changeable message board providing 500 messages (250 user-programmable), 50 graphic messages, arrow board function capability, and 100 sequence capacity. Other features include 365-day calendar program, solar-rechargable battery bank sized to provide 24 days of continuous operation, and efficient long-life LED lamps. An optional, built-in radar head to display motorists' speed is also available.