Mulcort Car Headup Display, GPS Digital Speedometer, KM/H Digital Speedometer with Colorful LED Display Clock & Compass Function Overspeed Alarm for Car Truck SUV RV

Installed and set up in a couple of minutes (cable routing aside). No adjustment or calibration was required in my case. Speed reading mirrored my vehicles analogue speedo dial and Sygic navigation app readings right out of the box. The unit was very easy to locate due to it's compact dimensions. Legibility and contrast suffers a little in direct sunlight but readout is still as visible as needed (few at this price are likely to be any better) Under normal lighting condition the screen is bright and very easy to read. Casework and finish is adequate but nothing more. Buttons function is ok but are not reassuringly positive in action. *The last point is hardly likely to concern too many people as you will not have much need to use them that often as the unit turns on and off with the ignition (and assuming you don't want to change font colour every day).For the money I am very happy and would unhesitatingly recommend it to anyone seeking a simple, accurate frill free digital speedo.

Plugged it in worked for 5 minutes made a popping noise turned off and smelt like burning I wouldn't recommend buying