Abstract
The "Codego" speed-o-meter has by the application of electromechanical in stead of electronical means the disadvantage, that mostly alone the speed of the first car of a queue can be measured. The adjustment is dependent of the human being, but the possible error is not big. At a limit for summon of 58 km/h a safety margin of 16% is present by errors of adjustment and possible errors due to a deviating impulse-form.