Already used for traffic enforcement throughout North America, the MPH Python III and Python III FS radar systems are now being manufactured with MPH Industries' premium-class Ka band antennas – at no additional cost. Benefits include increased sensitivity and range, more immunity from radio interference, all-black exterior for unmarked cars and covert operations, waterproof housing, and a smaller, streamlined profile requiring less room for installation. Python uses the well-known and legally accepted Doppler principle. The radar has been accepted by the FCC and conforms to all NHTSA specifications.