Universal Additional Digital Speedometer, ACECAR Car Heads Up Display, 3 inches Upgrade OBD2+GPS Mode Smart Gauge with Slope Meter, Compass, Speed, RPM, Warning Function, for All Vehicles

So, I can confirm that it does work on a 2006 Mitsubishi Lancer. This thing has so much data! Even has a turbo timer and altimeter I mean what? Takes it a minute to acquire GPS sats but speedometer is accurate for me. Side lights are not very bright, which is a good thing. I am impressed. If anything changes, I will update!

In the instructions, it is written that it is compatible with cars 2007 and newer, but after connecting the device, it said that it is not compatible, even though my car model is a 2010 Tahoe and I had to visit the company to maintain the car, who will bear the cost of repairing the computer

I rely on this to see MPH easily. It works great, but is now not showing engine temp (everything else seems to be reported ok.) Sadly, i can not find a way to contact the company :(

Ok product but seems very over priced.

This little gadget does pretty much exactly what it says it does.I recently bought a 2004 Nissan 350Z which is a great little sports car, but it's waaay behind the times as far as instrumentation - no screens, just a few little LED displays. With this plugged in, I feel like my little go-buggy is now a more modern car.I review about 1 product per DAY, and this is the most likely contender for my "cool product of the quarter". Yeah, the plastic case could be a little sturdier, and the screens, while pretty, aren't the most intuitive to adjust, but the display is very good, easily readable in anything but direct sunlight. Nice graphics, and a TON of information.It's a bit laggy on rapidly-changing things like speed and RPMs, but I suspect that's due to the polling rate of the car's computer. I don't know of all ODBII interfaces update at the same frequency or not, but you may not see RPM and SPEED numbers rise in sync with reality... but it in normal cruising, they will be spot-on. The inclinometer (built in to unit) works very well when stopped or at low speeds. At higher speeds, it jumps all over the place (my 2021 truck has this feature built-in and even it won't report above 15mph because it knows it can't get an accurate reading.)My favorite screen (and probably most people's) is the one shown in the main photo. By using the < and > buttons you can even configure what the top two indicators report, but I haven't figure out if there's some magic key combo to change any of the others... I really don't care to know how many GPS satellites it sees... but it would be very cool (especially up here in the mountains) to show the altitude - but I don't want to give up the RPM or FUEL indicators.I haven't tested the 0-62 or 62-0 acceleration/braking tests yet, but that's a pretty cool feature.And on top of all this, you can also use it as a trouble code scanner and get a report of any codes popping up on your car.There IS room for improvement in materials and interface, but until something better comes around, this is an AWESOME product and I heartily recommend it, especially if your car doesn't already have a lot of built-in instrumentation.4.75 stars!Hope this helps!

I have a 2006 winnebago, workhorse w22 chassis. My Bluetooth scanner works great, bought it a few years ago. This unit however says it's incompatible. The listing states its compatible with all cars. But if go to the listers site, it then explains it may not be compatible.

I like the variety of screens/views that this unit provides, including the inclinometer which aids me in identifying the road grade while towing my cargo trailer. It doesn't include readouts of all the sensors, such as transmission temperature, but I won't reduce a star for this.I'm reducing a star because this unit tends to lock up and stops displaying updates, such as in the picture you will see that it continues to read 24 MPH and 1135 RPM, when in fact I'm parked and put up the sun shield (the engine was still running). Not all of the readouts stop updating. I could only get it to respond by removing and restoring the power to the unit to "reboot" it.I haven't figured out if this unit is measuring the voltage it is receiving, or reading a sensor from the ECU, but my guess is that it is measuring the voltage, which is generally lower due to voltage drop across the low gauge wire associated with the OBDII port. There is a option in the settings to make an adjustment to the voltage readout, such as displaying 99% or 101% of the measured voltage, which I've used to bring the readout closer to actual.Because of the variety of options, please play with the features and screens while safely parked, because it can be very distracting to do while driving.Have fun!!!!