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Auto Head Up Display Speedometer

100 reviews
100% of buyers enjoyed this product! 3890 orders


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A900 Auto Hud Display Car Projector Alarm EOBD OBD2 Head Up Display Speedometer Windshield Electronic Accessories

It will automatically alarm if overspeed, so it can save you from looking down the speedometer and drive safely.
You can freely set this value. Setting Speed range: 30-199KM/H. (The device default alarm speed is 150km/h)

How to turn off “beep”

Long press wave button down for 3 seconds when its beep. The A900 HUD will give alarm when your car’s water temperature is too high in hot summer day


The brightness can automatically adjust by environment

HUD Main Functions & Features

A. OBDII cable input : a. Up button = up motion
B. Power button : b. Ok button = inward button presses
C. Setting button: Three ways of setting button : c. Down button = down motion
1.Engine RPM
2.Water temperature icon
3.RPM unit
4.Alarm (On/Off Option)
5.Speed unit at KM/H
6.Speed unit at MPH
7.Voltage icon
8.Multi-function area: speed, water temperature, voltage
9.Light sensor (Automatically adjust the brightness according to the environment)

Head-up display

Front View HUD You can view navigation and information at eye level instead of looking down repeatedly to ensure safer driving

Auto Head Up Display Speedometer

HUD Main Functions & Features:

1.Plug and Play connectivity with any OBDII or EUOBD capable vehicle;
2. Screen 3.5-inch HD display
3.Multi-color design makes the screen clearer and easier to read
4.Nano-technology to eliminate double reflections, more clarity
5.Rich Contents: speed, RPM, water temperature, voltage, single driving distance, low voltage alarm, high water temperature alarm, over speed alarm, freely switch between kilometers & miles.
6. Auto power on/off: HUD power up and power down with vehicle, effective protection of the car battery with manual switch mode
7. 5-level brightness adjustment, automatic and manual brightness adjustment mode

Easy to install

Step1: Insert the OBD socket connector.
Step2: The wire is stuffed into the A-pillar
sealing strip.
Step3: Connect one end of the obd interface to the HUD and place the HUD to a suitable position.

Auto Head Up Display Speedometer

Package List:

1* HUD body,
1* OBD data line,
1* reflection film,
1* anti-slip mat,
1* English Manual

FAQ:Auto Head Up Display Speedometer

1.Inaccurate Speed

a. First check the speed unit is correct or not, the speed unit including KM/H and MPH, set it at the correct one (refer to menu 4)
b. When HUD is power on, vertical press the setting button for 5 seconds to enter into the menu 0, the parameter shows 107, up or down the setting button to increase or decrease the value according to the difference until it shows correct one. After adjustment, vertical press in 5 seconds to save it.

2.Setting for the speeding alarm

When HUD is working, vertically press in the setting button for 5 seconds to enter into the menu, short press in the button for 3 times to find menu 3, the screen shows 150, which means the HUD will give the alarm once the speed over 150, up or down the button to change the value as you want, vertical press in the button for 5 seconds to save the data.

3.Switch the speed unit(Km/h,MP/H)

When HUD is working, vertically press in the setting button for 5 seconds to enter into the menu, short press in the button for 4 times to find menu 4, the screen show value 1 and KM icon, means the speed unit at KM. Press up the button and change the value at 2, you will see the MPH icon will be bright. Then vertical press in the button for 5 seconds to save the data

4.The screen without any display, and no power

Start the car engine; check if the OBD cable line is connected; please re connect the OBD cables again to ensure connectivity; check if HUD power switch turns on. If no display still, please change another car to test, analyze whether the car OBD diagnostic interface is good, if it is not good, please repair it and try again.

5.When HUD power on, HUD only shows the car voltage and be automatic power off after 30 seconds driving.

HUD just available for cars with OBD2 agreement and EU-OBD agreement(European region: after 03 years, Other region: after 07 years)
HUD Products don not support JOBD and OBDI and recommended test with another car.

6.Reset setting

When the HUD turns off, long press-in the setting button and at the same time turn on the HUD, all the lights will be on, and then release the button, the reset finished.

Brand Name




Wire or Wireless


Size Name

90*54*14 mm

Output Frequency

car hud

Material Type

ABS materia


New A900 car HUD head up display


speed, rpm, water temperature, voltage, low vo

Function speed, rpm, water temperature

= 30dB (A)

External Testing Certification


Item Type

Alarm Systems & Security

Display Size

3.5 inch screen

Rated Power


Function 1

hud head up display

Function 2

hud obd2

Function 3

hud display car

Function 4

car hud

Function 5

head up display

Function 6

head up display car

Shipping and delivery

We are proud to offer international shipping services that currently operate in over 200 countries and islands worldwide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:

Location*Estimated Shipping Time
United States10-30 Business days
Canada, Europe10-30 Business days
Australia, New Zealand10-30 Business days
Central & South America15-30 Business days
Asia10-20 Business days
Africa15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says "no information available at the moment".

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you have specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

Refunds & returns policy

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • You do not receive them within the guaranteed time (45 days not including 2-5 day processing)
  • You receive the wrong item
  • You do not want the product you have received (but you must return the item at your expense and the item must be unused)

We do not issue the refund if:

  • Your order does not arrive due to factors within your control (e.g. providing the wrong shipping address)
  • Your order does not arrive due to exceptional circumstances outside our control (e.g. not cleared by customs, delayed by a natural disaster)
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on page.

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

100 reviews
100% of buyers enjoyed this product!
5 stars
( 97 )
4 stars
( 3 )
3 stars
( 0 )
2 stars
( 0 )
1 star
( 0 )
  1. Customer

    Works with Renault Laguna 2 2003 year Auto has OBD connector

  2. S***s

    Delivery in 3 days, the courier brought home. Everything works, the temperature shows correctly. Everything is fine

  3. 8***r

    In Moscow came in 3 days, a convenient thing, the photo is blurry, but live perfectly!

  4. A***k

    The delivery is very fast in Tobolsk Tyumen region in just 6 days! Speed shows exactly, and the temperature is not correct! More than 40 does not rise! in general, the purchase in any case was satisfied.

  5. J***M

    Shipping fast four key okey.

  6. M***r

    It works as it says it does. Good product

  7. N***y

    as described, fast shipping, easy install

  8. P***o

    Sent very, super-fast, all in Good condition. Thank you store! Well done!

  9. J***o


  10. A***n

    Even without a film you can see well. In fact, balavenie

  11. K***r

    I’m Korean. my car is grandeur (Hyundai). this display fits perfectly well !! good quality easy installation quick shipping totally very good!!!!^^

  12. A***v

    Delivery week. Great projector. Auto Cheri fora 2008G, earned from the box, without dancing with a tambourine. You can see it in the afternoon. Speed shows exactly with the speedometer. Drove a couple of km, excellent, happy as an elephant. You don’t have to look at the speedometer now. Thank you to the store, success and prosperity!

  13. H***o

    2012 year old New Morning in a filler crystal the school was only fitted use L instrument speed exactly match well is working. 좃 iPhone?

  14. M***n

    Start off seconds will turn off as four behind. Analog speedometer view discomfort was used to four. New morning coolant water temperature isolated data as seen in no is the call is well and can install the letter by yo. Line clearance is a discretion at best. A week or so try and error if there again after stacking machine writing will sound.

  15. K***m

    Shipping wholesale moderately fast once product nicer ㅋ ㅋ Test driving yet but seemed to be well ~^^

  16. M***v

    All Hood temperature is the main thing, for duster Hood

  17. L***o

    Device has considerable delay the speed and the account-turns motor. Have manual car and not see much vagareza in demonstration of data on panel. Really picture doubles on windshield, even I having two layers of transparent film on the windshield, but not know if colarei film that comes in device, because guess would be very ugly. You can read yes, but is obviously not something Full HD because of duplication KKK. I expect to have a weaker brightness evening, I found a little strong. I walked in streets totally dark and you feel the car shining inside KKK sometimes even desconcentra. The way is leave it more in the corner of the windshield to not disrupt both. Ah, evening the picture quality is very good, Day is fully visible, even under sun, but not compare to quality night. Obs.: it has a different speed adjusting function case it mark your car (My has difference of 1,5 km/h compared with my car VW up TSI

  18. O***v

    Well, the installation of 5 min took, the wire is flat-it gets easily into any slit. In principle, the thing is working. Reflective film is better not to glue-at night it will be blind

  19. N***n

    Whole is complete …. i only have to connect it

  20. K***r

    Speed is navigation speed than year old km/h High seen me, instrument panel, rather than Dual-Degree as low as seen living as four. Once in the evening the water fall light Arthur is working low visible skin the hot is Less-like four. Product installation and caustic non along when no Wallet will think .^^ Vehicle Installation position such as compared with the eye fatigue Well than when installed, comfortable and safe running to be a Voice navigation. Lot pashmina long!!

  21. S***v

    Projector running machine Subaru sober

  22. M***v

    There is a problem, installation in VW Polo, on the right there is little space due to the sticking cable, I do not know how much is enough. And so in general everything works as in the description

  23. D***7

    Very quickly reached the Moscow region-in 4 days. All as in the description and reviews. I put it right away and drove, my hands until I got to straighten out the “frozen” wire and remove the torpedo (another 20 cm to look good at the bottom of of of and from the passenger seat, and from the driver. The ride became more convenient, you can see everything well. Later I will go through all the settings-and as I put on my Kia seltos there were data on the voltage, battery charge, temperature and, accordingly, the speed on the device-the we need to calibrate. The eyes show better figures than they turned out in the photo (before that, by the way, went on a test drive on the top model, there the leaving projector was, it was appreciated. Seller-well done, I recommend

  24. Customer

    HUD is the train for the tea cashes while too one way to buy the being Dashboard for viewing not enough compact product find the Bonnie this product is best Product is small, Bonnie seven segment in the month that secure Y area to correctly display sunproof outerwear readily (199 High non cross of digits is an expression is seen in equal this section is uncertain) Genuine smooth reaction of as long as the showing picture is not see and the gear transmission, is bad but is not just max RPM representation until 6000 and alarm can be up to 7500 set this not only delay the 0.5 seconds, Ebony Tiger believe red original proximity to try to avoid transmission are already pure real cut for hanging your car to see the next Crystal immediate return application for showing the product is not with you but you are included First problem speed error’s… At low speed, while high speed stable fit high speed to fit me hollowed-out fit the OBD2 in information why not fit Sy coming along with do not know about filling error given the guitar is er tea piece this manual measurement, Chaya taken in camera still won with tennis Double with same phenomenon is none Price for contrast are good product for Labor suit business card business card Clearance from old hanging in otherwise product shipping self-we soon grew following

  25. V***v

    I drove to Peter in 5 days, DPD delivery, with a view all is well, as I’ll add a review

  26. S***s

    It came quickly in 6 days, everything works fine, but the Velcro in the kit does not stick at all

  27. Customer

    Fast delivery to home. Everything is connected, it works. When turned on shows the voltage of the on-board network, then the speed

  28. G***g

    Only in Russian Language Translation No, bad.

  29. Customer

    Major events this unique set no need to speed for your nail yo Simply HUD Oh pit or experience in is just good product design looks like. Sleep well and is filled with… Screen appears in this is to write but no gimmicks Later tea change when genuine HUD vehicle with…

  30. K***c

    Led by four key

  31. Customer

    Excellent projection, video even without film.

  32. T***a

    The order was delivered within a week, the courier brought home. Everything works, the film on the glass is not glued. To store⭐⭐⭐⭐⭐For prompt delivery.

  33. S***v

    A good thing, the only thing was problems with delivery, but the courier brought himself, this is a plus!

  34. 충***김

    Caustic non nicer! Product description and life is the same Normal working well!

  35. C***c

    Shipping well-received. Speed is not know yet. Work is not more than this well.

  36. A***n

    The device came in 4 days from the moment of payment to receiving in the post office in the south of the Nizhny Novgorod region. The kit corresponds to the photo. It looks laconic, how it works-I will complement the review, until the installation is made.

  37. K***g

    Brightness is good day perfect price as long as the quality Reflective film size is too perfect fit iPhone must be carefully Sticking by mistake again buy scheduled

  38. Customer

    It came quickly enough 4.01-24.01 in the kit all. I am pleased. Seller recommend. I bought a kit with charging.

  39. 4***r

    Month buy the cars and trucks dual tone Potter in. Mounted. The business is good Buy any time those hot products

  40. 7***r

    Shipping is experience took days Oh Heart of woman oil essential oil products Product works well, all new Carnival

  41. E***v

    In Moscow, the goods came in a few days, everything is whole. Set as in the description. Put on Suzuki Jimny, everything works out of the box correctly, the cable was enough with a margin, when turning on a few seconds shows the voltage in the side Network, then the speed speed All default settings. Film on the windshield did not glue, T. K. You can see everything is wonderful both day and night. A little double the numbers. The only question is how long will it last. Turns off about 10 seconds after the engine is turned off. My wife is delighted. With the store did not communicate-there was no reason. I recommend the product.

  42. V***v

    Good quality, the data is displayed on the glass and without a film, if you look at it-you can see the double, but it does not bother at all. The film on the glass is included, but it looks IMHO is not very good with it.

  43. S***m

    Neatly and sought to bring ㅎ ㅎ After add additional purchase of incense. Terrific recommended

  44. A***v

    Delivery fast, set and quality as the description. Article is excellent, very much help on the road. During the day the sun can be seen clearly, complete label from split reflection, but it’s not a serious obstacle when подсматриваешь edge eyes reflection.

  45. V***v

    It came in six days. Instruction in English.

  46. J***k

    Shipping for why so fast? Amazed what products are picked good pulling

  47. M***i

    Shipping days took the post office Courier product is really what the first purchase.

  48. G***j

    Reflective film pasted also look good dish ㅎ ㅎ okey. Third-degree fit long data write too comfortable with reference no gimmicks.

  49. J***e

    Shipping incredibly fast four. Mounting easy working well!!! The business is the best.

  50. A***n

    Got it all. Works. The temperature really does not show correctly. And so norms.

  51. A***m

    Shipping is very fast, it is okey Display is smaller than I thought as When installed it’s OK you will look Three control card with morning on temporary installation Oh Yet well know but sideways on power-easy match got attention saw wire saw Start off approximately the second last night automatic shut off the

  52. D***n

    Shipping Postamat, fast. Buy the fret guelder 2 computer м74. Works flawlessly, only the speed needed to change the setting from 106 to 100, otherwise inflated rate. Recommend

  53. Customer

    A900 installation easy and speed is well in nicer. Light brightness adjustable for does not learn to look at know.

  54. T***O

    RAS, received in 10 days, makes his job, impeccable

  55. N***n

    Delivered in 6 days to Belgorod region. The speedometer readings then hurry for a couple of km, they’re late. I put it on Nissan Note 2007. The rest of the testimony works kind of fine. The film did not glue.

  56. 소***장

    Wiegand these four elements Light reflector system Film Paste called data. Wire coated paper stuck there Glass window engine head cap and quipped Body stick on this wish a ten day

  57. R***r

    All OK. Work smoothly even without film on the glass. Recommend

  58. B***v

    Excellent. Kashkay works

  59. M***v

    The product came in time I order the second time of the store I recommend

  60. W***n

    Brightness adjustment and nicer. The only instrument speed ditch lightly difference I living away and are satisfied.

  61. D***d

    The product corresponds to the description. it came very quickly.

  62. J***a

    Very good store recommend

  63. K***o

    Reflective film for work. Some more cover also seemed to be. The business is good. Durable also did well and look forward to Japanese.

  64. L***E

    Shipping Why case fast summer? Being well recognized connect well.

  65. Y***o

    Clearly visible even in the sun. Connected to the Mitsubishi Outlander 3 without problems, even in settings not delved. Shows exactly, because after obd2. Negative one star for a slight delay in delivery.

  66. S***e

    A beautiful and accurate device, but it is a simple and harmless delay, but a beautiful device frankly took 30 days to get me but worth the effort wonderful I liked

  67. A***d

    Free a can long, not yet tested, I would leave a notice after testing

  68. Customer

    Shipping fast four. Yet states installation line… and reaction qua

  69. A***v

    Everything is fine, put on the HREI, only the temperature shows 40 degrees

  70. K***r

    Domestic shipping stripes… too soon came four key Love in one more purchase,

  71. Customer

    Installation easy and make you satisfied. Power switch, battery discharge of risk and the looks like.

  72. I***g

    Work well. Just Sonata DN8 mounted on the cover to the closed quipped. Occasional apiece start when battery warning even 뜹. Polarized film is why the Nickle four. Selected for I do not worry.

  73. J***A

    Very good store, received in Less than 30 days. Great product.

  74. M***c

    Hello, this Hud is super, really… Working well and its very easy to install. Easy to setup foil on main window. I hope for long service of this. Just im sceptical for hot days… I hope this will survive temperature above 50° when is hot and sunny days… We will see … thanks for fast shipping… Recommend!!!

  75. Z***v

    The goods have arrived quickly, the store is satisfied and the goods are satisfied with the description. Thank you. Recommend.

  76. J***n

    Definition sharp and soon has arrived. Double with little boy four.

  77. M***a

    The Lexus RX300 left hand drive fits perfectly. Delivery fast. You can see very well.

  78. N***n

    Delivery took five days. The thing is necessary (to whom AS), personally it helps me very much. Once again, do not distract yourself on the instrument panel. Shows speed, engine speed and temperature. When you turn on the ignition shows the battery charge. I’m happy with the purchase.

  79. A***r

    Really good product assembly to make cheap well buy Oh

  80. M***R

    thank you very much

  81. L***a

    Very good product I recommend

  82. S***v

    Delivered faster promise. The whole package. Works fine. Recommend.

  83. Customer

    Cheap price to write only.

  84. L***o

    One seems to take over four days. Original brightness is more than off bright day Original Off LED daytime running light and at night is slightly dim automatically change the glare less, but this product is day and night the light Arthur on snow boot make your stars wear one pieces 뺍. Menu, press in Oh, whether is Nickle four. Besides that without the discomfort and windshield light said not reflective send standard sticker is really difficult gluing. Speedometer light reflective mirrors fit with trying to swarm was was branded watches the hand when asked and mess. Power just faded off the head see reflected the speedometer light stickers for Fit City Please prevail HUD turn ahead glass line than ancient, so wish you a sticker for front glass for balance but well stepped in line with high speed light up sticker fit is belong to me.

  85. H***n

    OBD connection, but Busin ~~ Reflective film pasted well.

  86. K***k

    Yet fitted saw, I’m sorry but itself is like this. Overseas Shipping snapping up the order payment days only accept for industry or. Fast shipping for playing corsage.

  87. 1***r

    Caustic non Okey Price for all grew four key Shipping took a little but make you satisfied

  88. 태***권

    Installation. Simple and think more fast and price is also cheap and very much in mind. Listen.

  89. V***v

    When connected directly earned! Unusual to see additional info on the front. Complete a film reflective, is not cling (the атермалке nomralno displays) How to adjust sound notification on привышение not understood. So pleasant мелрюочь! Taking over 1200 in Apr 2022

  90. Customer

    Works well even being lights brightest Arthur low even look good and oil paste well you will look

  91. V***v

    Delivery mega fast, ordered 2.02 brought home 8.02 young people. The film did not glue on the glass and so it is visible normally. In short I recommend, but there is one but, for some reason, the device itself is heated.

  92. S***v


  93. Т***в

    Smart 453. All OK. Cons-numbers are very large. Delivery within two days.

  94. Customer

    Nice product I recommend arrived in Turkey in 25 days Thanks

  95. S***o

    Easy installation, and non-caustic nicer.

  96. D***g

    Orders per January Feb lunar cuddling eventhough shipping cast came quickly in only four key .gps what keys with navigation speed degree car this dish. Low to look good and 촣 four key

  97. 영***김

    Shipping fast four elements, 4th in… Avante HD 2007 working well, etc.. Bright and terrific…

  98. H***o

    S rated. best dad in summer

  99. A***n

    The device does not work, settings are not enabled and does not switch to speed and. Tempreture

  100. D***d

    Delivery delayed for 1 day (ordered on the 7th, came 12) but it was even for the best. The projector came working, put on Focus 2, everything shows.

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