T800 Universal Digital Car HUD Head Up Display GPS Speedometer Car Smart Trip Computer, Display Speed, Voltage, Clock, with MPH Speed Alarm Low Voltage Alarm

Out of the box is easy to set up, good size, easy to view, turns off/on with the vehicle. This unit was reading too high at highway speeds, but as per seller there is speedo adjust/calibration, after that I have it working accurately as compared to other gps and vehicles. Perfect for my need of an accurate speedo -as my vehicle speedo is off due to oversized tires. I would recommend if using for similar purpose.

I put an LS 6.0 into my 1964 Chevy C10. I had no speedo. I wired this up and it does the trick. It's nice and big, easy to see, bright and just works. Why buy a GPS sender for $300 or a new gauge panel for $800?

Easy on the eyes and ideal for those of us used to digital Speedo and straining to deal with the old dial type.

En alta velocidad demora en ajustarse a la velocidad real , la precisión no es tan rápida como esperaba

I have this particular model, I installed it, easily fitted and it looked the part, unfortunately is is very laggy when connecting to satellites, so much so that I had to take it out. I could drive for up to an hour before it would connect, very disappointing and literally useless. It could be a windscreen issue, but why then did it occasionally work. I didn't complain about it, I just tossed it in a drawer and looked elsewhere. I wondered if there was an antenna add-on that might have improved it's satellite performance, however I have been unable to locate one. At this stage it is an $80.00 White Elephant. Unfortunate, I had high hopes. All I was looking for was an accurate speed checker.