Heads Up Display for Cars M11,Universal OBD+GPS Digital Speedometer Dual System 3.5 Inches HUD with Speed,Water Temperature,Driving Mileage,Overspeed Alarm,Suitable for All Cars
Original price was: $32.99.$31.27Current price is: $31.27.
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Features & Compatibility
Price: $32.99 - $31.27
(as of Mar 28, 2026 04:23:31 UTC – Details)
Product description
About M11 HUD
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
Compact mini 3.5 inch head-up display with a built-in light sensor helps the head-up display to adjust its brightness automatically according to the environment. This car HUD rear visor helps you read data more clearly and is an essential gadget for your driving.
Multiple alarm modes 
Car Windshield Flat View Display M11, Universal OBD+GPS Digital Alarm Function with Overspeed Alarm, Fatigue Driving Reminder, Speed Alarm, Water Temperature Alarm and Voltage Alarm.
Compatibility
The OBD mode is applicable to most gasoline vehicles after 2009, and the GPS mode is applicable to any car. OBD mode directly reads the original car data, while GPS mode requires searching for satellites to display the data. When your car does not comply with the OBD mode, please switch to GPS mode.
Automatic Brightness Adjustment 
The head-up display comes with a light-sensitive system that changes its own brightness display according to the environment. In addition to this, the display brightness can also be adjusted manually to suit your personal preferences.
1 product accessories
2 Installation steps
3 Detail show
Product Description Product functions After power on,the screen flashes.Press the ‘+’ key to select OBD or GPS system
1. Photographic component: senses the intensity of external light. 2. Decorative lights: Short press the ‘+’ button to turn off. 3. Speed icon: The engine speed is displayed in OBD mode, and the speed progress bar is displayed in GPS mode. 4. Multi functional display area: displays vehicle speed, etc. 5. OBD system. 6. Driving direction: When the vehicle speed exceeds 5KM/H, the driving direction will be displayed. 7. GPS system. 8.Water temperature icon and voltage icon. 9.Speed unit: KM/H,MPH.
Product Details Display The button functions, USB cable, and screen display are all very detailed
1.Brushed Metal:Streamlined curved shading design, with small spark patterns delicately polished on the back. 2.Driving direction: when the car speed exceeds 5KM/H, will display the driving direction. W=West,
N=North, S=South, E=East. 3. 2 USB interfaces are more convenient.
4. Button settings are easy to operate:Menu,Parameter+,Parameter- ,Power button
For all car perfectly Compatible with trucks, vans, road vehicles, SUVs, and other vehicles
The OBD mode of this product is only applicable to most gasoline vehicles after 2008, and the GPS mode is applicable to any car. OBD mode directly reads the original car data, while GPS mode requires searching for satellites to display the data. When your car does not comply with the OBD protocol, please switch to GPS mode within 5 seconds of starting up.
Product highlights
Dual system： OBD+GPS dual system, which can work on all vehicles. The OBD system is only applicable to some gasoline vehicles produced after 2007, while the GPS system is applicable to all vehicles. If your car is not compatible with the OBD system, you can switch to the GPS system. Function： Under the OBD system: vehicle speed, rotational speed, water temperature, voltage, driving direction, displayed driving distance after turning off, rotational speed diagram, and decorative icons. Under the GPS system: vehicle speed, voltage, driving direction, number of satellites, speed diagram, decorative diagram. Alarm function： Overspeed alarm, fatigue driving reminder, speed alarm, water temperature alarm, and voltage alarm. Speed unit： KM/H and MPH can switch freely. Temperature unit：Celsius and Fahrenheit freely switchable. Screen： LED display screen. Working voltage： 11V~18Vdc (12Vdc/200mA). Interface Display： With multiple interface displays, you can choose any display interface you like. Unique Design： The brand new modern design and unique ambient light display add a sense of technology to your car. Add the design of a sunshade to ensure that the driver’s driving is not dazzling and ensures safety. Reflective film： A complimentary reflective film can be attached to the projection area of the windshield, making the image clearer and without ghosting. Installation method： 1. Use the provided OBD cable to connect to the HUD, plug it into the car’s OBD interface, place the product where you want it to be, and the data will be projected onto the windshield. 2. Use the complimentary USB cable to connect to the HUD, plug it into the car’s USB interface, place the product where you want it to be, and the data will be projected onto the windshield.Alarm function: 1. Overspeed alarm: alarm sound when the vehicle speed reaches the set default value of 150KM/H, adjustable range (30-250KM/H). 2. Fatigue driving reminder: alarm sound when continuous driving exceeds the default value of 4.0 hours, adjustable range (1.0-8.0h). 3. RPM Alarm: alarm sound when RPM reaches the set default value of 7500 RPM (75 stands for 7500), adjustable range (10-75). 4. Water temperature alarm: alarm sound when the water temperature is higher than the default value of 120 degrees, adjustable range (50-150). 5.Voltage alarm: alarm sound when the voltage is lower than the default value of 10.0v, adjustable range (0-15.0v).
【About M11 HUD】The model of this product is M11,it is a reflective car flat screen display,unlike intuitive displays,this display is able to show the car’s driving data on the window,the HUD has an adaptive light sensor function,which reduce the ghosting and no blurring,it’s very convenient to watch.
【Multiple alarm modes】Head up display for car windshield speedometer for car with overspeed alarm,voltage alarm,water temperature alarm,fatigue driving reminder,fault alarm.
【OBD main function】Windshield speedometer projector OBD mode function: hour speed speed speed bar water temperature voltage single trip mileage clear fault code over speed alarm speed alarm water temperature alarm low voltage alarm fatigue driving reminder.
【GPS mode function】Car heads up display windshield GPS mode function: speed speed progress bar voltage satellite number driving direction single driving distance over speed alarm voltage too low alarm.
【Easy to install】Our product is easy to install, plug and play, just use the usb cable included in the product to connect the car and the product, start the engine to power on and use. The installation can be completed in a short time and hardly any mechanical knowledge is required.
【Note】The OBD system is only applicable to gasoline vehicles after 2009,while the GPS system is applicable to all vehicles. Please switch to the GPS system for other vehicles. This product is only applicable to vehicles with OBD2 protocol and EU-OBD protocol (after 2009). This product does not support JOBD and OBDI. The OBD model is not compatible with hybrid electric vehicles, diesel vehicles, pickup trucks, RVs, and computer modified vehicles. The following brands are not compatible with the OBD2 system: Renault/Peugeot/Citroen/Fiat/Jeep/Dodge/Jazz/RV/Hummer,etc. (Note: If you want to use OBD mode but are unsure if your car is compatible with OBD,please confirm with us before purchasing.)
FLreviewer –
Good value, easy setup.
This is easy to set up. The power cable was the right length and was simple to tuck out of sight. The small HUD projector and its sticky mount work perfectly. Adjusting the speed to match the speedometer took only two tries. Once turned on, it finds GPS right away and gives accurate speed and time.The windshield HUD screen that was supplied was too small, did not stick to the glass, and was not good. Replaced it with a larger 7 1/2″ and better one.Overall, excellent value for the money. It gives speed and time accurately. It is safer driving with HUD information, so one’s eyes are on the road. This unit delivers.
A. Pann –
Good simple speed indicator
This is a good simple HUD unit that can display time, speed and compass direction using GPS. You just put it on your dashboard and let it reflect off the windshield. There is a film you can attach to the glass to make the reflection clearer. There are different display modes, letting you choose which elements are displayed.I’ve read that some people say that it is inaccurate. For me, the default settings made it display speed that was 10mph too fast past 50mph. I was able to adjust it so that it was within 1 or 2 mph from 0 to 65mph. Press and hold M to enter the menu. The first screen will show an adjustment value (I think default is 107 or something like that). Lower it to 102. Press and Hold M again to save and exit. That worked for me. The instructions are not very clear on that, but basically if it is showing too fast a speed compared to your speedometer, adjust that value downwards. If it is showing too low a speed, adjust it upwards.Limitations:1. It uses GPS, so it takes a moment to find the signal when you start the car.2. It uses GPS, so when you lose the signal (like in an underground parking) it will show 0mph.3. In bright sunlight, its projection can get washed out.4. If you wear polarized sunglasses, it may filter out the display as well.All in all, for the price, it’s a good unit if you don’t need anything fancy.
Bill C. Springer –
May have got a bad one.
Worked well for a month, then stopped.
Stephen S –
Works great… sometimes
This was easy to install and I bought a hardwire kit so I could tap my fuse box and hide the install. Looks great, used 1/4 inch black plastic auto wire conduit (about 4 inches worth) to hide and protect the exposed wire on the dash area from direct sunlight damage and make it look clean. The unit comes on when I turn on my car and gets a satellite signal within 10 seconds so by the time I back out of my garage and drive to the end of my street it starts working. I had to follow the directions to fix the speed calibration and it is dead on the correct speed now. I have had it installed for about a month now and it is getting very hot here in the Dallas TX summer sun. It gets covered by my sun shade while it is parked at work.Not sure if this is due to heat but my wife and I took a drive out into the country a few days after I installed it. It did well for the first part of the 3 hour round trip but on the way back, it locked up on 0 mph and 7:00 and that did not change until I restarted the car after we had been back for about an hour. It did not do that again until yesterday when I was at lunch. I got back from lunch, turned the car off, went inside for about 2 hours then it did fine on the ride home, no issues. Not sure if this is heat related.I am able to see it without using the provided reflective static window cling used to reflect the light better during bright day light but I may try the cling soon to see if it helps during the day. Also, the unit has an auto dim for night use that helps a lot and looks nice. It looks the best at night or sun rise, sun set. The numbers for MPH are big and easy to see even without my glasses. I can also read the smaller clock without glasses. Its hard to see the compass and the timer numbers. Looks really good with my glasses on, very clear and looks very clean. Unit is black and very small and blends into my black dash.For the price its a nice little gadget but if I were to buy another I would get one that attaches to my OBD port and use the cars computer data to get speed and other info but also has a GPS to give a compass. Maybe $10 more.Nice little gadget. Easy way to make an older car feel a little more up to date and a newer base trim level car feel a little more luxury.
Nate –
Disappointed in response of unit. Speed and rpms.
The speed registers as 5 mph fast which is why I got this because my dash does the same. My gps backup mirror is correct. Also the rpms are not registered very well when hooked into the obd slot. The buttons should be on the other side so they don’t face away from the driver. It’s nice but could be a bit better. I would say save the 20$ and get the ten bucker.
Fred Haseman –
Easy to read.
Great product, after installing you can easily see your speed day or night without having to take your eyes off the road.
Ap128 –
Easy set up and great quality
For the price you can beat this. I’m gonna get more for my other cars
T. White –
The AZIJYV Windshield Projector is a solid, useful tool that does exactly what I need it to. While it has its pros and cons, the overall utility makes it worth having.The main drawback is that it’s hard to see in the daytime, especially with the glare from snow on the ground. Also, the speedometer is off by about 4km/hr, though that’s a minor enough gap to manage. Overall, it’s a very handy gadget for the price!
G20 –
Product as described easy install
David sawbridge –
Very good
Adenilton santos da Silva –
Bom dia eu gostaria de reclamar que o meu aparelho veio com defeito eu ligo ele no carro eu tenho um fox 2019 eu ligo ele tanto no USB quanto naquele carregador de celular eu a bússola o GPS fica piscando o tempo todo mesmo colocando do lado de fora do veículo não consegue funcionar desde quando eu recebi o pedido já tem quatro dias eu rodando com o carro e esse aparelho não funciona só fica piscando
aron cequena –
its so good and accurate the speed limit