Review on 🚘 AUTOOL OBD2 Digital Car HUD Speedometer with LCD Display | MPH/KMH, Overspeed Alarm, Auto Voltage Meter, Water Temperature Gauge | Suitable for 12V Petrol & Diesel Vehicles by Bohyun Hansen

Now I see other people crashed like me. Worked off and on at first thinking it was going through the different things it could do but I said nothing. Now it doesn't display anything, but I know it's working because it beeps at 74mph like it did with a working display. I just threw away $38 what a waste of money. Looks like a great idea but it didn't last long so I would stay away from these items from those who sell them.