DENVER - The Denver International Airport is utilizing Sentinel Police Mobility Vehicles from Xtreme Green Products. Officers use the electric vehicles to address the traffic flow of the airport.

An electric police mobility vehicle designed to replace bicycle and foot patrol, one of the Sentinel's advantages is the height it gives officers, according to Sergeant John Pender. "People see us. People recognize us as being police officers. You wear those reflective vests, and people don't really relate to you as a police officer," he said in an interview with "The Blue and You" television program.

Other advantages he cited are the bright lights on the unit and its "new-age" design that draws attention. "Everyone wants to look at it. It stands out," he said.

The Sentinel can travel at speeds up to 29 mph and offers a range of about 70 miles per charge. Charging time is three hours.