Best Obd Ii Diagnosewerkzeuge 2025

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Last Updated - 18.06.2025

Best Choice

01

XTOOL

XTOOL AD20 Pro OBD2 Diagnostic Tool Car Scanner All System Scan, Obd2 Reader with DTC Definition, Oil Reset, 11+ Languages, Voltage Detection, Lifetime Updates, iOS and Android

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33% Off
9.6

Exceptional

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Unique gift ideas: workshop owner, car engineer, professional home mechanic, retired backyard mechanic, DIY beginner, etc. Every car owner will need it.
TURN OFF THE ENGINE LIGHT AND READY YOUR CAR FOR TUV TEST (SMOG TEST): This fault code reader can scan the powertrain module (PCM) to retrieve emission-related diagnostic trouble codes (DTCs), still images and data streams (PID) to show why the Check Engine Light (MIL) is on, Car problem and how to fix it effectively using possible causes and solutions. This car scanner can also prepare your car for the TUV test with the standby status check function.
TRACK YOUR CAR PERFORMANCE The car diagnostic with code reader works best when paired with your car and connected to the OBD2 port. This unique OBD-II engine system diagnostic tool provides a performance test and ride (analysis) that allows you to track engine performance (acceleration, fuel efficiency), coolant temperature, engine speed, voltage, etc. while sending alerts to your phone once an error code is detected while driving. NOTE: This car code reader shuts off when the ignition is turned off.
Support of the German language and wide compatibility. The car diagnostic tool XTOOL AD20 Pro supports German. You can switch the device to the German language so you understand everything well, and you can also switch to English, Spanish, French, Italian and other languages, which is convenient for different language groups. AD20 Pro is suitable for most 12V American cars manufactured after 1996, as well as European and Asian cars manufactured after 2000. 24V heavy duty trucks and motorcycles are not supported. Compatible with iOS and Android systems.
LIFETIME UPDATES AND CUSTOMER SERVICE: The XTOOL Advancer AD20 Pro car diagnostics comes with a 2-year warranty, 24/7 technical support and lifetime software updates. If you need any help, please do not hesitate to contact us directly for a quick response. We are always there for you!
Full System Scan Tool >> Most OBD2 scanners have only 10 full OBDII functions and cannot diagnose and analyze all systems of your vehicle. XTOOL AD20 Pro intelligently scans all your vehicle's systems and accesses the Deep Check feature that allows you to thoroughly check vehicle systems such as engine, transmission, brakes, steering, safety, infotainment and more. It reads vehicle information, reads/eliminates codes, turns off warning lights, analyzes all performance changes in text format and gets a complete picture of your vehicle. Read a code once and it pays for itself.
Easy to install and use: XTOOL AD20 Pro car diagnostic scanner is equipped with fast BT 5.0 connection, can pair with iOS and Android devices, download the "Advancer AD20" from Google Play or App Store to a wealth of functions, including, check engine light on, full system diagnostics, full OBD2 test modes, etc. This OBD2 scanner is a cost-effective way for DIY enthusiasts to read/delete codes before taking it to the dealer.
Detailed explanation of the error code and error code warning: the car reader has diagnostic functions with fault code definitions, which are extremely useful for the car owner to fix vehicle problems or replace faulty components. There is also an error warning function. If your vehicle has error codes or the coolant temperature is too high, you will receive alerts on your smart device to understand the fault and ensure safer driving.
BT connection problem ---- Please check the following cases to determine the cause. ●1. Please check the OS version of your device as the scanner is compatible with Android 4.4+ (64-bit processor) and iOS 11+ devices. (Android devices with 32-bit processor are not compatible because they are relatively old on the market) ●2. Please make sure the dongle is firmly inserted into the OBDII port. ●3. Please make sure the network is stable. ●4. Please make sure the vehicle is started or the ignition switch is set to "ON".

39,99 € 59,99 €(33% Off off)
02

Veepeak

Veepeak OBDCheck BLE+ Bluetooth OBD II EOBD Diagnostic Device Adapter Plug Car Diagnostic Scanner for iOS and Android

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21% Off
9.3

Excellent

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Vehicle compatibility - Compatible with petrol vehicles from model year 2001 and diesel vehicles from model year 2004 for general OBD-II functions (check engine light diagnosis). For plug-in hybrid and electric vehicles, please check the app car scanner ELM OBDII and check if there are suitable EV connection profiles or other apps specially designed for electric vehicles. Note: Please make sure your OBD port is in good condition and the device is firmly in place to connect to the vehicle ECU.
Useful for car owners: OBDCheck BLE+ is a small and practical OBD2 diagnostic tool that can work with different third-party apps to achieve different functions. The functions you can get depends mainly on the selected app and your vehicle. Please read the "Instructions for Use" on the detail page "Product Guides and Documents" before purchase or use. [English language not guaranteed].
Note: Currently, no Veepeak app is included with this device; Third party apps are required but not included and must be downloaded or purchased separately from the Play Store or App Store (depending on vehicle and requirements); NOT compatible with pre-2008 or G series models when used with BimmerCode or BimmerLink; NOT compatible with Bluedriver, Carly, MHD, xx. HP, HP, ProTool.
Do more: (advanced features for select vehicles, see image 3 for details) - When used with more professional apps (usually requires a separate purchase), you can get advanced features such as advanced diagnostics* (ABS, airbag, body control, etc.) and manufacturer-specific PIDs (such as transmission temperature, oil pressure), inspect the HV battery in hybrid and electric vehicles, adjust selected vehicles, etc. *To check whether your vehicle for advanced diagnostics, please see the fourth picture on the product page. Note: The oil service light cannot be reset.
Diagnostics of the engine check light (basic functions) - When used with generic OBD II apps such as car scanner ELM OBDII (see picture 2 for more compatible apps), you can read and clear engine diagnostic trouble codes (CEL, MIL, SES), display I/M readiness and sensor values in real time (such as O2 values, engine coolant/oil temperature. air mass flow m, fuel distributor pressure, fuel trimming), which can help you solve simple engine problems.
Device compatibility - Compatible with iOS via Bluetooth LE (do not connect to the device in iOS Bluetooth settings; please connect directly in the OBD2 apps) and Android devices via classic Bluetooth (main units may not be compatible). Detailed instructions on how to connect and troubleshoot iOS and Android can be found in the fifth product image or the user manual. [English language not guaranteed].

39,00 € 49,99 €(21% Off off)
Value for Money

03

RICOKEY

ELM327 OBD2 Bluetooth Scanner Car Code Reader Reset Auto Diagnostic Scan Tool OBDII Adapter for Android & Windows Devices Check Engine Light for Cars, with Torque Pro APP

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26% Off
9.1

Excellent

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Main highlights

Various free apps: support for iOS, Android and Windows devices. The free app "Torque", "Mini ODBII" & "DashCommand" works perfectly for Android phone/tablet. App for iOS, car scanner, OBD Auto Doctor, OBD Fusion, DashCommand, inCarDoc, etc.
Universal compatibility: works with both vehicles that are from 1996 in the USA, 2000 in Europe, which are all OBDII protocols vehicles. Whether your vehicle is with petrol, 12V diesel, new or old, our OBD2 reader works with it.
Supports ALL 9 OBDII protocols: J1850 PWM, J1850 VPW, ISO9141-2, ISO14230-4 KWP, ISO15765-4 (Can-BUS).
Monitor & Analyzer:Top Bluetooth OBD2 Adapter,Read Engine Diagnostic Trouble Codes Quickly, Clear Codes, Check Engine Light (CEL), Check if your vehicle is ready for smog check, Turn off MIL, display the sensor readings in real time with your phone or tablet. Save money by fixing car problems quickly and accurately yourself.
Intelligent diagnostic functions: read and clear error codes, immediately display their meaning (over 3000 generic code definitions in the database). Displays current sensor data (engine speed, calculated load value, coolant temperature, fuel system status, vehicle speed, fuel trim, intake manifold pressure, timing lights/flow, air flow, intake air temperature, absolute throttle position, oxygen sensor.

11,69 € 15,99 €(26% Off off)
04

ANCEL

ANCEL AD310 OBD2 Diagnostic Tool Car, Reader Car OBD-II Diagnostic Tools, Engine Fault Code Reader, OBD2 Car Diagnostic Tool for All Vehicles Since 1996 & Newer (Black)

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21% Off
8.8

Very Good

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Main highlights

Robust and compact: Equipped with a 2.5 foot long cable made of a very thick, flexible insulation. Car reader is important to have a stable scanner as it can easily fall to the ground when working in a car. The AD310 OBD diagnostic tool is a well-constructed device with a slim design. It weighs 12 ounces and measures 8.9 x 6.9 x 1.4 inches. Thanks to its compact design and light weight, transporting the device is no problem. The buttons are clearly labelled and the screen is large and shows the results clearly.
OBDII protocols and vehicle compatibility: Many cheap car reader do not really support all OBD2 protocols. This is not the case with the AD310 obd-ii diagnostic tools, as it can support all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. This unit also has comprehensive vehicle compatibility with 1996 US based, 2000 EU-based and Asian cars, small trucks, SUVs, as well as newer OBD2 and CAN vehicles both domestic and foreign. Please check the compatibility with your vehicle model before purchasing.
OBD2 diagnostic device: ANCEL AD310 is one of the best-selling OBD2 car diagnostic device on the market and is recommended by Scotty Kilmer, a YouTuber and car mechanic. It can easily determine the cause of the check engine light comes up, quickly read and clear diagnostic error codes, read live data and hard memory data, view freeze frame, I/M monitor readiness and collect vehicle information. Instead of bringing the car to the workshop, you can use it to check the error code and show code definition yourself.
Note: 1. ABS/Airbag/SRS codes are not supported, can only read engine system data. 2. Not compatible with French and Japanese vehicles before 2004 such as Opel/Mazda. We recommend that you check the compatibility with your model before purchasing. You can contact us at any time.
Home necessity and worthy to own: This is an excellent OBD2 diagnostic device for travelling or at home, as it weighs less and it is compact in design. You can easily slide it into your backpack when you go to the garage, or put it on the dashboard, this will be a great fit for you. The AD310 is not only portable, but also accurate and fast in performance. In addition, it covers different car brands and is suitable for people who only need a code reader to check their car.
Accurate quick and easy to use: AD310 car diagnostic tool can help you or your mechanic understand whether your car is in good condition, provides exceptionally accurate and fast results, reads and clears engine error codes in seconds. If you want to find out the cause of the check engine light, car diagnostic device and fix the problem immediately and without any car knowledge. No need for batteries or a charger, get power directly from the OBDII Data Link Connector in your vehicle.

31,49 € 39,99 €(21% Off off)
05

HyAdierTech

HyAdierTech OBD2 Diagnostic Tool, V310 OBDII Diagnostic Tool with Full OBD2 Functions, Engine Fault Code Reader, Car Diagnostic Device, Scanner CAN Diagnostic Tool for All OBD II Protocol Cars

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10% Off
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

WIDE VEHICLE COMPATIBILITY - Our car code reader supports 9 protocols compatible with most US based, 2000 EU based and Asian cars from 1996 as well as newer domestic or imported OBD II CAN vehicles. It supports 6 vehicle languages: English, German, French, Spanish, Italian, Dutch, which allows car owners worldwide to have accurate and fast diagnosis.
Unique and compact design - The OBD2 tool is equipped with an LCD screen that allows super clear display of test results and makes it easier to read and use in all lighting conditions. The ergonomic handle design makes it easier to use and transport, does not take up space and helps you say goodbye to the problems of large and uncomfortable card readers in the car.
Multiple OBDII diagnostic functions - The practical OBD2 code reader has several functions, such as B. full diagnosis of your vehicle's data and display graphical data streams: calculated load values, engine coolant temperature, vehicle speed, engine speed, etc., display code definitions, view still images, vehicle information displays, I/M preparation and more. It is a vehicle code reader that reads and clears OBD engine codes and displays all vehicle information when an error code has been triggered.
Easy to use - The universal OBD2 diagnostic tool is "plug and play", reads and clears error codes quickly and is very easy to use even for beginners. Simply connect the diagnostic tool to the OBDII port and turn on the ignition and the device will start the fault analysis. No batteries or download the apps; a vehicle reader for vehicle diagnostics anytime, anywhere.
ABS & AIRBAG CODES ARE NOT SUPPORTED - It is able to read and clear engine information that is part of OBDII system, but does not work with non-OBDII systems, including ABS with airbag with oil service light, etc.

26,99 € 30,00 €(10% Off off)
06

Veepeak

Veepeak OBDCheck BLE/Bluetooth 4.0 OBD II Car Diagnostic Tool, Diagnostic Code Reader, Scanner, Compatible with iOS and Android

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10% Off
8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Vehicle compatibility: Compatible with petrol vehicles from model year 2001 and diesel vehicles from model year 2004 in the EU and UK (only for basic functions; advanced features are only available for select vehicles via advanced apps). For plug-in hybrid and electric vehicles, please check the Car Scanner ELM OBDII app and check if there are suitable EV connection profiles or if there are other apps specially designed for electric vehicles.
Please read before purchasing: OBDCheck BLE is a small and practical OBD2 diagnostic tool that can work with different third-party apps to achieve different functions. The functions you can get depends mainly on the selected app and your vehicle. Please check the compatibility and app information in the product images and read the instructions for use found in the product guides and documents (English language not guaranteed) before purchase or use.
Important note: Not compatible with pre-2008 or G-series models when used with BimmerCode or BimmerLink. Currently, no Veepeak app is included with this device; third-party apps are required but not included and must be downloaded separately or purchased from the Play Store or App Store (depending on vehicle and requirements); not compatible with Carly, MHD, xHP, ProTool apps.
Device compatibility: Compatible with iOS via Bluetooth LE (do not pair the device in iOS Bluetooth settings; please connect directly in the respective OBD2 app), and with Android devices via classic Bluetooth (head unit compatibility not always ensured). Detailed instructions for connecting and troubleshooting for iOS and Android can be found in the fifth product image or user manual.
Basic functions (for diagnosing the check engine light on OBD II-compatible vehicles). When used with generic OBD II apps such as Car Scanner ELM OBDII (see picture 2 for other compatible apps), you can read and clear diagnostic issue codes related to the check engine light (CEL, MIL, SES), snapshot data, display I/M readiness and sensor values in real time (generic OBD PIDs such as engine coolant/oil temperature, mass air flow, fuel trim falues), which can help you solve simple engine problems.
Advanced features (for select vehicles, see image 3 for details): When used with more professional apps (usually requires a separate purchase), you can get advanced features such as advanced diagnostics* (ABS, airbag, chassis control, etc.) and manufacturer-specific PIDs (such as transmission temperature, oil pressure), inspect the HV battery in hybrid and electric vehicles, adjust selected vehicles, etc. *To check whether your vehicle is compatible with the advanced diagnostics, please see the fourth picture on the product page. Note: The oil service light cannot be reset.

35,99 € 39,99 €(10% Off off)
07

AUTOUTLET

AUTOUTLET OBD2 Diagnostic Tool, Car OBD2 Scanner Code Reader OBD2 EOBD Engine Fault Code Reader Scanner with DTC Definition, 10 Languages, Voltage Detection and Monitoring, Car Fault Code Reader

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Please read before you purchase】Our OBD2 tester is not able to detect the manufacturer's customized non-open data as this requires a special vehicle protocol to be read, such as ABS, SAS, ESP, EPS, TPMS, transmission and other subsystems, DPF, battery reset, oil service reset, EPB brake pad change and throttle valve can not read the place can not will
【OBD2 diagnostic device with multiple functions】This plug-and-play OBD-II diagnostic tool has a built-in OBD2 DTC finder library that helps you find the cause of the engine light, read codes, clear codes, still images, I/O capability, vehicle information, data streams, real-time curves, retrieve vehicle speed information, load retrieve engine coolant temperatures and retrieve engine speed
With OBDII data plug: The OBD 2 diagnostic device comes with a 6 cm cable and does not require an additional battery or charger, but is powered directly from the vehicle via the OBDII data plug
Wide compatibility and 10 languages: this car error code reader supports compatibility with 99 percent of OBDII compatible vehicles and works with most US vehicles manufactured after 1996, EU vehicles manufactured after 2006, and Asian vehicles manufactured after 2009; compatible with J1850 PWM, J1855. 0 VPW, ISO9141, KWP2000 and CAN protocols (9 OBDII protocols), supports 10 languages, including English, French, German, Dutch, Spanish, Chinese, Italian, Polish, Finnish, Portuguese
Tips: The battery life detection function of this OBD2 is not applicable to hybrid vehicles with non-lead acid batteries (if the curve of the real-time monitoring curve of the battery of this OBD does not change when the ignition is on, it means that your vehicle's battery is not a lead acid battery).
Note: 1. This OBD2 diagnostic device uses the international common 9 protocol to support 12V petrol cars and light trucks (non-electric), diesel cars and other trucks with a different protocol, so it is not compatible with diesel cars and other trucks; 2. If the vehicle has been modified or the OBD interface is defective, the OBD function may be affected, please contact us for feedback
DTC definition display: Our car reader has a 2.4 inch display that shows you an explanation of the code after you retrieve the generic code, so you do not have to search the Internet for code explanations to find out what is going on with your battery
Battery detection function: compared to general car error reader, AUTOUTLET car diagnostic device can not only read up to 88 real-time data streams to ensure the accuracy of troubleshooting, but also determine the voltage of the battery and evaluate the life of the battery with a monitoring function, so you know the condition of the battery in real time

21,15 €
08

HOSPAOP

HOSPAOP OBD2 Car Diagnostic Device, Fault Reader Car Diagnostic Tools for All OBD II Vehicles, 9 OBD2 Modes, 13 Languages, One Touch I/M, Voltage Detection, Error Code Reader for Car

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8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Quickly clear fault codes and comprehensive diagnostics - The T200 OBD2 error reader is able to quickly read engine fault codes and reset the check engine light (MIL). In addition, you can view vehicle history to detect recurring problems and analyze comprehensive real-time data such as RPM, vehicle speed and temperatures. So you can identify potential problems before they cause major damage.
One-click I/M status check for exhaust tests - The integrated I/M status check of the OBD2 diagnostic device allows you to check the exhaust status of your vehicle with a single push of a button. This is particularly convenient to ensure your vehicle meets state emission standards and is ready for exhaust testing. This saves time and reduces the stress of preparing for regulatory checks.
Intuitive operation and real-time data display - The OBD2 diagnostic device offers user-friendly handling thanks to the 2.4 inch TFT colour display. It displays vehicle data in real time and allows you to monitor the vehicle condition at a glance. With automatic vehicle detection, you do not need to manually select a make or model, which significantly speeds up and facilitates the diagnostic process.
Fast and precise fault diagnosis - With the OBD2 diagnostic device T200, you can easily cover all vehicles with OBD II protocols - over 97% of vehicles on the market. The OBD2 diagnostic tool supports 9 different protocols, including ISO9141-2, SAE J1850 PWM, and ISO15765-4 CAN. This makes the OBD2 diagnostic tool suitable for a variety of car brands and models, making it an indispensable tool for DIY enthusiasts and professionals.
Battery and Voltage Monitoring - The OBD2 diagnostic tool can not only read fault codes, but also provides fast and accurate battery diagnostics. Real-time monitoring of battery voltage in waveform helps you check the health status of the battery. In addition, you can adjust the voltages of different OBD contacts (e.g. CAN-H, CAN-L, K-line) to diagnose electrical faults faster.

29,99 €
09

ALLmeter

ALLmeter OBD2 Car Diagnostic Tool with DTC Definition, 9 OBD2 Modes, 9 Languages, Voltage Detection, Car Fault Code Reader, OBD-II Diagnostic Tools for Cars After 1996 (Blue)

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11% Off
8.1

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

REAL TIME DATA This detector reads and records vehicle data streams in real time, supports testing components and sensors, detects OBD voltage and battery voltage, including life and voltage curves
Multifunctional Diagnostics The OBD2 fault detector supports 9 protocols, is compatible with most vehicles from 1996 onwards, and provides engine fault diagnosis, troubleshooting, freeze frame error codes and over 7,000 built-in fault codes
INDEPENDENT QUICK BUTTONS The tester allows you to check the vehicle's I/M status and battery voltage with just one button, which simplifies operation and makes the diagnostic process more efficient
HD COLOR DISPLAY The detector has a 2.4 inch HD backlit screen for clear display in the dark and is compact for easy storage. It supports multiple languages
BUILT-IN DTC SEARCH LIBRARY The detector contains over 7,000 fault code definitions that allow users to quickly find the meaning of fault codes and quickly determine the cause of engine failure

32,92 € 36,99 €(11% Off off)
10

UWALK

OBD2 Diagnostic Device Bluetooth OBD Adapter: Bluetooth 5.4 OBD2 Code Scanner Car Diagnostic Scanner - OBDII Diagnostic Device Car for Vehicles with All System Diagnostics - Compatible with iOS

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7.8

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Superior speed and stability: thanks to Bluetooth 5.4 technology, this OBD2 scanner offers ultra-fast data transmission, improved connection stability and energy efficiency. It exceeds older Bluetooth versions and ensures fast and reliable diagnostics. You can also accurately evaluate the performance of your vehicle through three key diagnostics - acceleration, braking and distance travelled. This gives you deep insights into your car's performance and can optimise your driving technique to achieve a smoother and more efficient driving experience.
Interactive dashboard display: Turn your smartphone into a comprehensive digital dashboard that displays detected data in clear and easy-to-read charts. Even beginners can use it without any problems. The dashboard displays important readings such as speed and speed, with the OBDII function minimizing distractions by displaying important information at eye level, promoting safer driving habits, and improving safety and comfort when driving.
Easy setup: Setup is a breeze - simply scan the QR code on the packaging or in the instructions, install the app and pair the scanner with your iOS, Android or Windows device. The intuitive design and simple instructions make it accessible to users of all skill levels. Our manual contains detailed instructions, and in case you have any questions about our products or encounter any problems during use, you can leave us a message on Amazon (vehicle make/year/model).
Comprehensive fault code location: Identify, fix and delete fault codes quickly and easily with a simple scan. By detecting and clearing fault codes, you can better understand the condition of your vehicle, ensure optimal performance and reliability, and avoid unnecessary workshop visits. The OBD2 scanner supports over 100 brands and 100,000+ vehicle models in 24 languages. In addition, you can download all test results as detailed PDF reports for comprehensive analysis, maintenance and troubleshooting.
Bluetooth OBD2 Real Time: Vehicle Safety Monitoring - OBD2 scanner perform various performance tests, including speed performance analysis, displacement calculation and fuel consumption analysis, but also perform important functions such as battery condition test, freeze frame data analysis, sensor tests, vehicle monitoring and evaporation system tests, allowing you to monitor the performance of your car in real time, ensure optimal driving conditions. and problems early can recognize.

33,99 €