{"product_id":"motor-meter-racing-85mm-3-3-8-pro-gps-speedometer-ip67-waterproof-0-120-mph-accuracy","title":"MOTOR METER RACING 85mm (3-3\/8\") Pro GPS Speedometer — IP67 waterproof, 0–120 MPH accuracy","description":"\u003cp\u003e\u003cstrong\u003eThe MOTOR METER RACING 85mm (3-3\/8\") W Pro GPS Speedometer is a rugged, weatherproof gauge that uses GPS to display accurate speed up to 120 MPH and records total miles to 99,999.9.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact 85mm instrument combines a high‑precision stepper motor movement with GPS-based speed sensing to give a reliable speed readout without needing a vehicle speed pulse. Built for outdoor and marine environments, it pairs stainless hardware with an anti‑fog lens and white LED lighting for clear daytime and nighttime visibility. The package includes the speedometer, a GPS sensor, power harness, fastening ring and installation instructions so you can install quickly in 12V or 24V negative ground systems.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the GPS speedometer deliver accurate speed readings?\u003c\/h3\u003e\n\u003cp\u003eThe gauge uses a dedicated GPS receiver rather than wheel or transmission pulses, so it reports vehicle ground speed independently of tire size or differential gearing. A stepper motor drives the needle smoothly, reducing jitter and improving readability when accelerating or decelerating. This approach also eliminates calibration hassles common with pulse‑based units.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGPS receiver included for satellite‑based speed measurement\u003c\/li\u003e\n  \u003cli\u003eStepper motor movement for smooth needle response\u003c\/li\u003e\n  \u003cli\u003e0–120 MPH range suitable for street and many performance vehicles\u003c\/li\u003e\n  \u003cli\u003eWorks without vehicle speed sensor signal or gearing adjustments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this gauge survive wet, salty, or sunny conditions?\u003c\/h3\u003e\n\u003cp\u003eThe instrument is built to withstand challenging environments: IP67 ingress protection resists water immersion and dust, a 316 stainless steel bezel fights corrosion, and UV‑resistant materials prevent sun damage. A convex clear lens and anti‑fog construction preserve visibility in humid or marine settings. These design choices make it a durable option for motorcycles, boats, off‑road rigs, and custom projects.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIP67 waterproof and dustproof rating\u003c\/li\u003e\n  \u003cli\u003e316 stainless steel bezel for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eAnti‑fog and UV‑resistant lens and housing materials\u003c\/li\u003e\n  \u003cli\u003eBlack faceplate with white LED lighting for contrast\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation and memory features does it offer?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: the kit contains a GPS pickup, power harness and mounting ring, and it supports both 12V and 24V negative ground electrical systems. The odometer stores total mileage up to 99,999.9 with adjustable memory and retains data when power is removed. If you need a dedicated mounting cup, MOTOR METER RACING sells compatible 85mm cups separately.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes GPS sensor, power harness, and fastening ring\u003c\/li\u003e\n  \u003cli\u003eCompatible with 12V\/24V negative ground systems\u003c\/li\u003e\n  \u003cli\u003eOdometer stores up to 99,999.9 miles with power‑off memory\u003c\/li\u003e\n  \u003cli\u003eOptional gauge mounting cups available separately (ASINs provided)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is nighttime visibility handled?\u003c\/h3\u003e\n\u003cp\u003eWhite LED illumination lights the black dial cleanly for high contrast against the red needle, so the gauge remains legible after dark without distracting glare. The LEDs are integrated behind the faceplate to deliver even lighting across the scale, while the anti‑reflective convex lens reduces hotspots and reflections from cockpit lights.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWhite LED backlighting for uniform night visibility\u003c\/li\u003e\n  \u003cli\u003eRed needle for quick visual reference against a black dial\u003c\/li\u003e\n  \u003cli\u003eConvex clear lens minimizes reflections and glare\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The MOTOR METER RACING 85mm Pro GPS Speedometer is aimed at vehicle owners and builders who want reliable, maintenance‑free speed readings and a durable build for outdoor or marine use. It's a good fit for motorcycle conversions, classic cars without electronic speed signals, off‑road vehicles, boats and custom dashboards where a compact, weatherproof speed display and retained odometer are required. The included GPS sensor and power harness make it practical for owners who prefer a mostly plug‑and‑play solution, while installers will appreciate the robust materials and clear documentation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003ePackage note:\u003c\/em\u003e One‑year warranty covers defects not caused by human damage; free lifetime tech support is provided. If you need a mounting cup, purchase the MOTOR METER RACING W PRO 85mm 3‑3\/8\" gauge mounting cup in black (ASIN B0CXCQTNRL) or silver (ASIN B0D4DBTRJL).\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: Does the speedometer work without a vehicle speed pulse?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The included GPS sensor provides speed readings independent of vehicle speed pulses or wheel sensors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this gauge waterproof and suitable for marine use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It has an IP67 rating, 316 stainless bezel and UV‑resistant parts for wet and salty conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MOTOR METER RACING","offers":[{"title":"Default Title","offer_id":55170278752599,"sku":"B081JLJWD3","price":74.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/motor-meter-racing-front-view-85mm-gps-speedometer.jpg?v=1790426590","url":"https:\/\/britishgarage.co.uk\/products\/motor-meter-racing-85mm-3-3-8-pro-gps-speedometer-ip67-waterproof-0-120-mph-accuracy","provider":"British Garage","version":"1.0","type":"link"}