OBDLink MX Wi-Fi Scan Tool

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Turn your smart phone, tablet, or PC into a sophisticated diagnostic scan tool, trip computer, and real-time performance monitor. MX Wi-Fi can access GM SW-CAN & Ford MS-CAN networks in addition to standard OBD-II protocols.

Availability: In Stock

Item# 426801


OBDLink® MX is a pocket-size Wi-Fi OBD-II adapter for all OBD-II compliant vehicles (except hybrid or electric vehicles). It can be used as a diagnostic scan tool, trip computer, logger, and real-time performance monitor. Its BatterySaver™ sleep mode allows the adapter to stay plugged in continually, without draining the vehicle’s battery.

OBDLink® MX Wi-Fi is the only OBD-II adapter that gives you the flexibility to easily connect directly to your iPhone or iPad, or to an existing Wi-Fi network. MX Wi-Fi features WPA2 with AES encryption, a sensible precaution to keep hackers from accessing your car's network. MX’s support of the de facto standard ELM327 command set, makes it compatible with tons of third-party OBD software and mobile apps.

OBDwiz and OBDLink app, included with OBDLink MX, allow you to:

  • Turn off the check engine light, and erase stored diagnostic information
  • Read and erase stored, pending, and permanent trouble codes (both generic and manufacturer-specific)
  • Access freeze frame information
  • Display, graph, and log 90+ real-time parameters
  • Create custom digital dashboards
  • Measure and display fuel economy
  • And much more!


  • Maximum vehicle coverage (Verify your vehicle is OBD-II compliant)
  • Supports SW-CAN & MS-CAN protocols
  • World’s fastest Wi-Fi OBD-II adapter
  • Small form factor
  • Hacker-proof
  • Read & clear 'Check Engine' light
  • Automatic sleep & wake-up
  • Free iOS & Android app & Windows diagnostic software
  • More 3rd party app & software options
  • Free firmware updates

Additional Info

DEVICE WEIGHT1.25 oz (35.44 g)
DIMENSIONS1.97 x 1.77 x 0.91 in (50 x 45 x 23 mm)
  • Wireless module: 802.11b/g
  • Encryption: AES128
OPERATING TEMPERATURE-4º to 131º F (-20º to 55º C)
OPERATING HUMIDITY10 to 85% (non-condensing)
MAXIMUM PARAMETER ID (PID) RATE~80 PIDs/second for Windows PC, ~60 PIDs/second for iOS, & ~70 PIDs/second for Android
WARRANTYOBDLink® MX Wi-Fi comes with an unconditional 90-day money-back guarantee, and a 3 year warranty.

3 year warranty90 day money back guarantee
  • Legislated OBD protocols:
    • ISO 15765-4 (CAN 250/500 kbps, 11/29 bit)
    • ISO 14230-4 (Keyword Protocol 2000)
    • ISO 9141-2 (Asian, European, Chrysler)
    • SAE J1850 VPW (GM)
    • SAE J1850 PWM (Ford)
  • SAE J2411 Single-Wire CAN (SW-CAN) - GM proprietary network
  • Medium-Speed CAN (MS-CAN) - Ford proprietary network
Compatible Devices

OBDLink® MX Wi-Fi can work with any Wi-Fi-enabled smart phone, tablet, or PC. Officially supported platforms (this means, we verified that MX Wi-Fi works with apps running under these operating systems) include:


  • iOS 7 and newer (iPhone, iPad & iPod Touch)


  • Smartphones (Android 2.2 and newer)
  • Tablets (Android 2.3.3 and newer)


  • Wi-Fi-enabled PCs, Laptops, Netbooks (Windows XP SP2 and newer)
  • Phone (Windows Phone 8 and newer)
  • Tablets (Windows 8 and newer)
Given MX’s open architecture and strict adherence to the 802.11 standard, we anticipate apps to be developed for other platforms as well. In fact, compatible third party applications are already popping up for several other platforms, including Blackberry and Linux.
OBDLink Comparison Table
DocumentationApps & Firmware
  1. OBDLink® app for iOS
  2. OBDLink® app for Android
  3. OBDwiz Diagnostics Software
Technical support is offered through our Community Forum which is monitored by ScanTool.net Team Engineers: OBDLink® MX Wi-Fi board.

Visit OBDLink.com for advanced support and recommended apps & software.
Related Items

Customer Reviews (4)

Saved me a bundle!!Review by Brian [Amazon Review]
Very handy tool. It was easy to setup and use and paid for itself on first use. I was able to diagnose the check engine light on my VW Jetta which led me to a part that I could fix on my own. Saved me at least $400 in repair bills. I especially like the ability to leave the device plugged in and connected to the iPhone. You can see all sorts of vehicle information like, MPH, RPM, Turbo Boost Pressure, Miles per Gallon, and many more. You can make a custom dash displaying readings from essentially every vehicle monitor in real time. I have on occasion had to remove and reconnect the device to the cars computer port to get it to connect with my phone app, but I would still give it 5 stars as I don't know if that's a bug or user error. It's a great tool to have even if your not mechanically inclined. You can google the trouble codes and at least know what's wrong with your car before you get to the mechanic shop. (Posted on 10/6/2016)
Setup was pretty straight forwardsReview by Simon [Amazon Review]
Compact OBD2 device which fit snug out-of-sight in the OBD2 socket under dash. Connecting this directly (peer-to-peer) with your device's WiFi you will lose the option to get an Internet connection, however you do get the option to connect the OBDLink MX first to a mobile hotspot or a wireless router (via the OBDLink MX's local web settings).

Setup was pretty straight forwards:
1. Download OBDLink App via ScanTool's website or AppStore, select and setup your car profile settings;
2. Plug OBDLink into ODB2 socket and switch ignition key to ACC;
3. Hold setup button on OBDLink;
4. Turn on WiFi on phone/device, find and connect to "OBDLink MX", and input pass code;
5. Start OBDLink App and connect.

Downloaded 3rd party app called "DashCommand" from AppStore for a small fee, slightly buggy with intermittent connection issues to ODBLink MX (connection dropping out frequently and popup messages asking to enable bluetooth). The default OBDLink app is pretty reliable, the only connection issue (happened once) was my phone's WiFi connection dropped off "OBDLink MX" and connected another WiFi connection/hotspot, which meant the connection on OBDLink MX must have dropped or the device auto rebooted for some unknown reason. (Posted on 8/16/2016)
item is ok not perfect there are connection issues if you connect no problem ...Review by Amazon Customer [Amazon Review]
item is ok not perfect there are connection issues if you connect no problem sometimes it doesnt want to connect power off power on reset but when it connected i had no issues with it oblink android software is useless doesn't show DTCs for my ford i had to buy forscan (Posted on 8/16/2016)
An amazing product, with a few limitations.Review by ThePlacesYouWillGo79 [Amazon Review]
The OBDLink MX Wi-Fi is an amazing tool, and has so much functionality packed in to one tiny package.

I purchased this scanner, after a friend recommended one of the Bluetooth models to me, but after doing the research on the manufacturer's web page, elected to purchase the more expensive Wi-Fi version that is compatible with my iPhone and iPad. The product, as always, was delivered an expedient manner, and I had no issues with the delivery.

Upon receipt of my product, and with about a week's worth of testing under my belt, I'm happy to say that it meets my minimum needs, with a few caveats. I purchased this primarily to check the function of my vehicle's speedometer. While driving down the road, my speedometer decided to park itself at 0, and unsure of whether the repair was going to be a $25 vehicle speed sensor, or a few hundred dollars worth of instrument cluster, I elected to use this as attempt to save myself an hour's worth of labor, and possibly a few hundred dollars in parts. Unfortunately, my speedometer failed, and this has now become my full time speedometer.

Luckily, ScanTool provides an app free of charge to monitor the health of the vehicle, as well as provide an extremely functional data display from the vehicle's OBD data. For me, this meant that I could use the app as a speedometer while waiting for a repair/replacement on my installed instrument cluster.

Part of this full time use, has been learning that there will be connectivity issues on re-start. With iOS devices, the device will automatically connect to the ODBLink scanner, and then you have to hit connect inside the app to bring up the dashboard. This process can take upward of 2-3 minutes. Overall, not a terrible inconvenience. The problem came, when trying to use a dedicated android device in the car to act as my speedometer. With no internet connection, my android devices will not automatically connect to the Link's wi-fi network, I have to manually select connect every time I want to connect to the device. This limits, somewhat, the functionality, or at least the ease of use, of the device. If this device were capable of outputting both Bluetooth and wi-fi for the same price, I would completely call this device as being "worth the money."

Right now, it's not a bad deal, but I don't know that it's worth the stand alone price. (Posted on 8/16/2016)


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