Good and cheap with only small flaws

This favorable speedometer with all essential functions can be easily installed and operated. Particularly positive is the large, clear display. Two negative points I have noticed that in my previous Tacho (same price range) were not to be regretted, therefore only 4 stars: First, you can not adjust the total odometer reading but always starts from 0 (especially annoying on if you already have a couple thousand KM an old speedometer had). Secondly, the speed display is at sudden speed changes sluggish and erratic (when accelerating, for example, is first a long while 10 Km / h and then suddenly 25 Km / h). Despite these minor drawbacks: I would buy it again.