5.5 inches A8 OBD2 Windshield HUD Head Up Display with Display RPM MPH Speeding Warning Fuel Consumption Temperature

I bought this for my RV before a cross country trip because my speedometer is hard to see with my sunglasses on and the tilt wheel down, which is what I prefer. Super easy, just plug into the OBD port under the dash. It comes with a small reflector screen like a screensaver for your phone that you affix to the inside of the windshield. It showed speed, RPM's, volts and water temp. It does read a little high....at 70 mph on the dash speedometer and with cruise set on 70, this devide read 75 mph. Error seems less (+2-3 mph) at lower speeds. Anyway I just mentally adjusted the math. It was a great help on the road, lessened the driver fatigue for sure. The instructions stated that it may read less than the dash gauges.....I don't know if it is because it is cheap, or if the data from the OBD port causes this. Either way it's a cool gadget.

great Hud display, easy to set up, very accurate, and after 3 years still works great without any problems.

Worked fine for about 2 weeks, then began to randomly change settings. Now it reads KPH instead of MPH, and when I'm on the freeway doing 55, it says I am travelling at 213 KPH. It randomly shuts off, restarts, or fails to turn on when I start my car. It is basically a POS that you should not waste your money on.

Pleased with the results of installing this HUD. Easy to mount and set up. Like other reviews have stated, the display is dim in bright daylight, but easy to read in anything other than a bright sunny, cloudless day. It does what I want it to do, display the speed, oil temp, and RPM. Even though it states that it will display US measurements (MPH, F, etc..), it is geared toward displaying liters, & C. I only display the RPM, MPH, and temp displays, and leave the others blank since they are geared towards liters and too difficult to convert. I have the oil temp set up for C since the bar graph will Red Lines all gauges when trying to display temperatures over 120 degrees F. At least with the display set to C, I have a general observation of the normal operating temp and know when it creeps upwards to a hotter temp. Overall I'm very pleased with the display and would recommend it for anyone wanting the basic display of engine rev, MPH, and oil temp. But it's not much help in displaying miles per gallon calculations. The package arrived quickly and securely. Can't complain.

Update1: After contacting the seller about the defective product, we came to an agreement to send me an updated model and refund me the cost. Once I receive it, I'll update this review again with any additional information.I had been using this product for the last two months and was going to right up a decent review until Monday morning, eight weeks after I received it.I got this product after doing research on all the other HUDs that Amazon offered and this one seemed to do what I needed it to do. I drive a 5-speed 2005 Elantra and ordered this HUD based on it's display, the colors and information it presented.When I received it, it seemed like a pretty basic setup; cable with ODB2 connector on one end and a mini-USB plug on the other, the device itself, a sticky pad to keep it from moving around on the dashboard (although, it was designed to lay on a flat dashboard, so if you have a curve over your instrument panel, it makes it harder to place and display the information correctly), and a polarizing sheet to eliminate the double reflection from the window.I initially ran the cable along the outer edge of my dashboard, along the crack between the door and the dash, and then up under the dashboard to the ODB2 outlet to see how it would look. I noticed that the product lit up displaying the voltage and the word Hud. Cool. It works!After spending about 30 minutes trying to translate the manual's very broken English and trying to work the settings controls (it's a 3 way switch - up, down, and in to navigate), I managed to get it configured for US measurements (MPH, F°) with two exceptions: the two over speed alarms and the fuel consumption information. Both of these are coded to only be in metric measurements (Km/H and Km/L, respectively) and you cannot change them. Since one of the variable displays is the fuel consumption information, I decided not to display this information. If you remember and understand that the values will be different than all the other measurements on the display, then you should be okay to display it.I personally elected to display the RPMs, voltage, temperature (in graph form only), and speed. This gave me information about the car, without it being overwhelming. One good feature that this device has is the automatic display mode (menu option #7). When set to zero, the device turns off all other display information except the speed when traveling more than 50MPH (80KMH). This is very helpful and practical and make it so that it's not so distracting.The unit has additional information to display, like the radiator temperature, mileage counter (i.e. trip computer), and alarms for when over revving the engine (i.e. you need to shift to a higher gear), over speed limit, engine fault, and fatigued driver. There is another "buzzer" alarm, but there's no menu setting to configure it. Maybe it's tied to the seatbelt, door open, or one of those types of alerts.Once I had it completely configured, I didn't want it just hanging over my dashboard, so I disassembled my dashboard and fed the wire up thru the console's pathways to tidy it up. I applied the adhesive pad to the dash and plugged in the HUD. This setup worked great.A quick note about how this looks. I always wear polarized sunglasses to get rid of the reflection of the dashboard and anything that is reflecting from it. This includes the HUD's box image. With the brightness of the HUD, this gives the perfect image of the information on the screen and, while the double image is there, it's not super annoying as long as I'm wearing polarized sunglasses. On sunny days, this HUD is tested to its limits and much of the colored information is washed away in the bright sunlight, but the speed is still noticeable, albeit faint. Other reviews of this same unit have recommended putting the reflection film on the windshield to allow the display to be seen better, but honestly, I have been hesitant to put anything more on the windshield which would create more of a distraction. However, if you've played video games, then the HUD shouldn't be a problem as the information is always present on the windshield and you don't have to look away from what's in front of you.From commuting to running errands to just general leisure, it worked. I was able to unplug it and take it out of the car to prevent dishonest people from obfuscating with it. That is until Monday morning when was about to head off to work.When I plugged it in after only 8 weeks of using it, each and every LED light on the display lit up and didn't show anything useful. I tried unplugging it and plugging it back in and even turned the car off and back on, but nothing helped. Basically, it died after only two months of use. After checking with Amazon customer service, I found out that the device has no kind of warranty at all, so if you buy one of these, be sure to get the extra warranty in case it craps out on you too.Pros:Easy to setup and start usingBright displayLots of informationAutomatic reduction of information at higher speeds to reduce distractionVarious colors to differentiate different types of informationCon:Doesn't include a non-stick pad for curved dashboardsIt's a little bulkyThe brightness can be a distraction if you are looking down at it while drivingLack of adjustment to US measurements on fuel consumption and speed alertsSettings controls are hard to manage and very touchyTo make it look nice, you have to know how to disassemble your dashboard to run the wiring neatlyDoesn't come with any stated warranty, so make sure you include one when you buy it

It is bright enough and the anti glare screen works - sometimes some of the read outs would not light up or indicate

I found this as simple as plug in and go. It was already set to mph and calibrated accurately for my vehicle. The double image issue was so minimal, I considered not putting the reflective film on my windshield. Without the reflective film, it’s a bit dim, but not hard to see on a sunny day. With the reflective film, it is clear and in color on a sunny day. I am happy with it. I installed it as low on the windshield as possible and that works for me. I am not worried about the exterior mirror look, nor would I be concerned about explaining or demonstrating how it does not interfere with road vision to a traffick officer. You see right through it like sunglasses.