{"product_id":"mh-head-up-display-hud-for-car-obd2-gps-dual-system-black-speedometer-tachometer-with-fault-scan","title":"MH Head Up Display HUD for Car — OBD2+GPS Dual System, Black, Speedometer \u0026 Tachometer with Fault Scan","description":"\u003cp\u003e\u003cstrong\u003eThe MH Head Up Display is a dual OBD2+GPS instrument that projects live speed, RPM, temperature, voltage and diagnostic codes so you can monitor key driving data without looking down.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for OBDII\/EOBD cars made after 2008, this compact HUD combines vehicle-bus telemetry and satellite-derived metrics in one unit. It gives a clear readout of speed, tachometer, water temperature, battery voltage and other parameters, plus onboard fault scanning and customizable alarms, letting drivers spot problems and keep attention on the road.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the HUD show accurate speed and engine data?\u003c\/h3\u003e\n\u003cp\u003eThe MH HUD pulls vehicle sensor data directly from the car’s ECU via the OBD2 port for real-time engine and sensor values, and switches to GPS mode when the car’s protocol is unavailable. That dual-system setup ensures continued speed reporting and basic trip metrics even if the vehicle bus is incompatible.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOBD2 mode: direct ECU data for speed, RPM, water temp, voltage, fuel consumption and more\u003c\/li\u003e\n  \u003cli\u003eGPS mode: satellite-based speed, altitude, satellite time and direction\u003c\/li\u003e\n  \u003cli\u003eAutomatic or manual switching between OBD2 and GPS\u003c\/li\u003e\n  \u003cli\u003eCompatible with OBDII\/EOBD-compliant petrol cars post-2008\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat diagnostics and alerts can I expect from the device?\u003c\/h3\u003e\n\u003cp\u003eThe HUD reads engine fault codes and shows error details on-screen; you can also clear codes directly from the device. It features programmable alarms for overspeed, high engine temperature, low\/high battery voltage and RPM thresholds so you receive timely warnings while driving.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eScan and display fault codes; clear codes with a short press of OK\u003c\/li\u003e\n  \u003cli\u003eSet overspeed alarms between 5–200 km\/h and RPM\/temperature\/voltage thresholds\u003c\/li\u003e\n  \u003cli\u003eReal-time streaming of ECU parameters for performance checks and tests\u003c\/li\u003e\n  \u003cli\u003eAcceleration and brake test functions to log short performance runs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow customizable and visible is the display for different driving conditions?\u003c\/h3\u003e\n\u003cp\u003eThe unit offers multiple interface designs, eight backlight brightness levels and selectable units (km\/h or mph, °C or °F) so you can tailor the presentation for day or night driving. Install it on the dashboard or attach it to the windshield with the included adjustable bracket for the best sightline.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTen interface styles and adjustable brightness (1–8) for visibility control\u003c\/li\u003e\n  \u003cli\u003eUnit options for speed and temperature to match regional preferences\u003c\/li\u003e\n  \u003cli\u003eTwo mounting methods: dashboard bracket or windshield sticky mount\u003c\/li\u003e\n  \u003cli\u003eCompact footprint to avoid obstructing the driver’s view\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat car types or brands won’t this HUD support?\u003c\/h3\u003e\n\u003cp\u003eThe MH HUD is built for standard OBDII\/EOBD petrol vehicles manufactured after 2008 and will not work with older OBD I systems or some vehicle types and specific brands listed as incompatible. If your car’s OBD protocol is unsupported, the device will still provide GPS-based speed and trip features.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNot compatible with diesel, hybrid electric vehicles, pickups, RVs, or heavily modified computers\u003c\/li\u003e\n  \u003cli\u003eKnown incompatible brands include Jeep, Peugeot, Citroën, Fiat, Renault, DS, Lamborghini, SIMCA and Suzuki\u003c\/li\u003e\n  \u003cli\u003eIf OBD2 protocol is unsupported, GPS mode remains available for speed and trip data\u003c\/li\u003e\n  \u003cli\u003eWorks only with OBDII\/EOBD-compliant systems produced after 2008\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Drivers who want a compact, easy-to-read secondary instrument to keep eyes closer to the road: daily commuters, performance-minded owners who monitor RPM and voltage, and drivers who want quick on-board fault scanning without a laptop. It’s ideal if your car supports OBDII\/EOBD and you value timely alerts and a customizable display; if you own one of the excluded vehicle types or brands, review compatibility first, since GPS-only functionality remains as a fallback.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this HUD work if my car’s OBD2 protocol is incompatible?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — if the car’s OBD2 protocol isn’t supported, the HUD still provides GPS-based speed, altitude, time and basic trip data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I mount the unit on my dashboard and on the windshield?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the MH HUD includes an adjustable bracket and adhesive option for either dashboard or windshield installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MH","offers":[{"title":"Default Title","offer_id":48083831685278,"sku":"B0F2H6WZZX","price":60.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/mh-hud-front-display.jpg?v=1785836780","url":"https:\/\/northtrailauto.ca\/products\/mh-head-up-display-hud-for-car-obd2-gps-dual-system-black-speedometer-tachometer-with-fault-scan","provider":"North Trail Auto","version":"1.0","type":"link"}