Car HUD Head Up Display P6, OBD+GPS Smart Gauge, Works Great for Most Cars

It helped me determine I have a faulty vehicle speed sensor / transducer in my Land Rover Discovery 1. The speedometer was showing normal but what was being reported to the ECU (accessed via the OBD2 reading) was way off and all over the place causing shuddering and loss of power. The problem was intermittent and viewing a code scanner would be very challenging to catch the problem. For about $40 tax included it’s well worth it for just this reason. But, it’s also really nice to have digital readings of coolant temperature and voltage. This era of Land Rover is notorious for the factory temperature gauge not moving until you are already overheating.

Seem to be a pretty good device looks good day time and night lots of info you get from the car cool clock faces works really good 👍

Bought this to get a tachometer functionality because some people on a forum recommended this to get a tach for a Rav4 prime. The issue with the Rav4 prime (and not so much with this HUD) is the battery voltage is super inconsistent. Sometimes it's over 14V, sometimes its at 12.8, 12.9V, and it can interfere w/ the voltage off, so unless if you're okay at working out some inconsistencies with this display, maybe don't get one for the Rav4 prime (I mean, the product description says it's not compatible w/ hybrids).The mounting tape wasn't very strong, and the suction cup was initially not "suction" at all until I took the proper time to get it suctioned on the window, and it has held itself in place ever since. There's an included screwdriver to remove the bottom plastic plate that you adhere the double sided tape to, I opted to removing that after getting the suction cup working properly, and used a piece of tape so the little remaining plastic bits have a soft place to sit on and doesn't damage the dash.3 control buttons lets you to cycle between different display modes/entering into the settings/switching different readings on subsections of the HUD, and you're able to see readings like coolant temp, oil temp, transmission temp, turbo boost (if your car has a turbo), there's not too much customization, but there is a blanket reading page that just shows everything possible, if you need something like that.What is absolutely awful and not an excuse however, is the manual. There's like...no instructions on setting the manual, and it feels like half of the settings don't even do anything. There's also no way to disable certain warnings, like "high coolant temp warning", the only thing you can do is set it to an ungodly 200C. It also seems to shut itself off after the specified voltage after 3min regardless of what you set for the timer to turn this OBD2 off, at least that's what I assume what that setting is supposed to do, but there's no manual to tell me that. Given the price, this would absolutely be 5 stars had the manual actually detailed what all the settings did.

Useful if your instrument cluster has gone bad and you don’t want to spend hundreds fixing it or replacing it. The downside is, the temperature gauge portion of it does not work. There was something else that doesn’t work but I can’t remember right now. The speed monitor works flawlessly, the battery voltage reader works flawlessly, the trip advisor works flawlessly. 4 out of 5 stars from me. I believe it is worth the buy.

This is a nifty little gadget. Various display mode allows me to pick the type and data I want to see. It fits snuggly on the corner of the dash board. I use it to display oil, water, CVT(*) temperature in real time.In the first try, the timed auto-off didn't work and it stayed on. It turns that I also need to set the auto-off voltage to >13V. Then it will turn off when the engine is off and after the set time. The logic is a bit odd but it worked.I bought one each for my 2018 Forester and 2020 BRZ. I do need to tweak the speed by 2~4% so the reading matches the digital speedometer on the BRZ and the Garmin navigation on the Forester.It reads "CVT" temperature on the Forester. But on the BRZ 6MT it also has a "CVT" temperature readout. I am assuming it is just the temperature of the transmission gear oil? I wonder if there's a way to rename it or somehow they just use CVT to represent all types of transmission.

Plug and play installation. Plugged this into my car's OBD II plug and it came to life. Didn't need to change any settings. It immediately displayed MPH, coolant temp in farenheit, engine RPM and battery voltage. GPS speedometer is spot-on!

Perfect gauge replacement when mine failed. Lots of options for display and functionality. You may have to calibrate for mph accuracy. Overall I am very happy with this gauge. It is easy to set up , has options for placement and it is easy to read while using.

I am only giving this three stars because I had to send back the first one because it does not read the mpg right. The new one I received also does not give the correct mpg. I kept it because I didn't want to deal with sending it back again. It gives a good reading on the engine temperature, has accurate reading for rpm and mph. It is also has good screen options and lights up nice in the dark. Also I like the style of it. The suction cup works well with no issues of it coming off the window. The wire tucks nicely out of site. I am just disappointed the mpg doesn't work right.