Best Scanners Testers 2025

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Last Updated - 09/06/2025

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
9.7

Exceptional

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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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

ujinzhou

OBD2 Diagnostic Device OBD Bluetooth 5.2 Adapter: Wireless Car Diagnostic Code Reader Scanner for All Vehicles - OBDII Tester Plug for iOS Android Windows - Reader with Full OBD2 Systems

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9.5

Excellent

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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OBD Error Codes Quick Find: The diagnostic function of the mini code reader has error code definitions that can quickly find the problem. This is very useful for car owners to fix car problems or replace faulty parts and solve problems more effectively. If you are not sure whether the car scanner supports your car, or encounter problems during use, you can leave us a message on Amazon (car make/year/model).
Greater vehicle compatibility: the car reader supports more than 100 car brands and 100,000 models, including most vehicles made in the USA since 1996 or all vehicles made in Europe since 2001 with OBDII protocol, vehicles with OBD2 interface and 12 V car battery. The application also supports 15 languages, so you can bypass language barriers.
Easy to use: using the ODB2 reading tool is very easy. Simply search for the OBD connector and connect it to use. Download the software and connect to the OBD2 scanner by scanning the QR code on the packaging. Pair the car diagnostic tool with your mobile phone. It can be connected to any iPhone iOS, Android and Windows device.
Data stream data display: including car engine speed, transmission, coolant temperature, fuel system status, speedometer, airbag, intake manifold pressure, ignition feed, intake temperature, flowing air pressure, absolute throttle position, oxygen sensor voltage/associated short-term fuel reduction, fuel system status, fuel pressure.
Bluetooth 5.2 OBD2 Scanner: The OBD2 diagnostic tool has a complete system scan tool and intelligent diagnostic report. It is characterised by a stable connection, faster data transfer and low power consumption. It is 10 times faster than other Bluetooth 4.0 adapters. The ujinzhou OBD2 scanner can quickly detect vehicle problems and provides real-time parameter monitoring. Ensure your driving safety.

35,99 €
Value for Money

03

HANMATEK

HANMATEK SF1 Cable Finder Detector Wall Scanner Detector Multifunctional Stud Finder Wood/Ferrous Metals/Non-ferrous Metals/Cable

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15% Off
9.4

Excellent

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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The scanner has two functions: acoustic alarm and light indicator. Ergonomically designed, it is very comfortable to hold at any angle; the rubber on the back prevents damage to the wall, which is safe and comfortable.
Simple and Easy to Use The SFI wall scanner has 4 functions, it is suitable for detecting metal, wood, magnetism, AC cable, can accurately and quickly fix the position of nails, screws, steel rods, wooden beams, AC cables, etc.
Self-calibration: the wall detector can be calibrated automatically, simply press the metal detection button. Note: The automatic calibration must be done without nails, AC cable or metal, otherwise the test results will be inaccurate.
Easy to read: the large LCD display is easy to read. The signal strength display area on the display can clearly show the distance to the metal object. The screen can see the scan mode, detection depth, detection signal strength, battery indicator and center point, etc. And the detector can be shut down within 5 minutes without operation.
Application Scenario This wall detector can quickly locate metal and wood AC cables hidden in the walls, floors and ceilings of your home, and help you avoid dangers when installing TVs, cabinets, garage shelves, etc.

25,20 € 29,99 €(15% Off off)
04

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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9.2

Excellent

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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【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 €
05

PIGADA

Cable Detector PIGADA up to 120 mm, Cable Finder with Protective Case, Power Line Finder, Wall Metal Detector, Cable Finder, 6-in-1 Wall Scanner Detector for Wooden Beams/Iron Metals/Cables

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9.1

Excellent

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

【Prevent accidental drilling and protect the bag】: automatic calibration before use provides users with maximum reliability and accuracy, greatly reducing errors in application. Wire alarm detection works to a depth of 51mm (2") to avoid AC lines, and is always enabled when scanning in stud scan and metal scan mode. The most popular PVC bags are essential for storing items and avoiding safety risks during construction.
【Audio Alarm & HD LCD Display】The stud finder features a large LCD display, which allows clear viewing even in low light conditions. It displays detection mode, centering and low battery level and provides a clear acoustic warning for accurate and effective object location. Fast detection saves time and effort.
【6 in 1 Bolt Finder up to 120mm】: Multiple scanning modes, including accurate scan and depth scan, provide you with six different scanning scenes to choose from. Stud-Exact-Scan Mode finds the center of the stud while Deep Scan mode detects the width of larger objects such as pipes and wires. The magnetic stud finder is able to detect magnetic metals up to a depth of 4.72 inches (120 mm) useful for finding conduits behind walls.
The PIGADA bolt finder package contains 2 x 1.5 V AAA batteries, a dust-proof bag and a comprehensive instruction manual (English language not guaranteed). The manual contains detailed instructions on how to operate the stud finder including common problems that may occur when scanning walls. This guide is designed to improve the user experience and ensure accurate measurement results. Customers enjoy a 12-month warranty and lifetime support, which includes the ability to get a replacement item if needed.
Intelligent microprocessor chip: The wall post finder has an intelligent micro-sensor chip with the highest sensitivity, which can accurately and quickly find edges and centres of metal, posts, beams, pipes and live AC cables behind walls, floors and ceilings. Ideal for mounting curtain rods, shelves, picture frames, handrails and shockproof metal hardware. Whether professional, homeowner or DIY enthusiast, this bar scanner is extremely practical.

24,99 €
06

VCELINK

VCELINK Cable Tester, Network Tester, Cable Tester for RJ45 RJ11 Cable Patch Cable Line Tester, LAN Tester, Telephone Cable Tester

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9.0

Excellent

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

We offer 18 months warranty if any quality problems.
Switchable Speed: The Ethernet tester has 2 speeds (state "ON" for moderate speed, state "S" for slow speed).
Special Gift This practical tool is perfect for Father's Day, Thanksgiving, Christmas, Halloween, birthday or other anniversary gifts.
Practical: the network tester displays the results in a few seconds. Short circuit, interruption or interrupted wires are easily identifiable. It can be used to check the misplaced cables.
Functionality: Network cable tester for checking LAN cables (RJ-45) and ISDN cables (telephone cables RJ-11), including instruction manual (English language not guaranteed).
Easy to use: connect one cable end to the main unit (master), the other to the removable unit (remote). By the way LEDs light up, you can easily identify the wiring problem
Dimensions: 100 x 104 x 28 mm, weight: 180 g. Box contents: 1 x network cable tester, 1 x instruction manual (please note: the 9V block battery required for power supply is not included).

9,99 €
07

LAUNCH

Launch X431V (X431 Pro) OBDII OBD2 Diagnostic Scanner, Key Ring, Electric Control Unit (ECU) Coding, Anti-Lock Braking System (ABS) Bleed Brake, Reset Functions Including Oil Reset, Electronic Parking Brake (EPB), Steering And Suspension (SAS), Diesel Particulate Filter (DPF), Battery Management System (BMS), Supplemental Restraint System (SRS), And Tyre Pressure Monitoring System (TPMS)

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38% Off
8.8

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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[5 Years] - Recommended by mechanic Scotty Kilmer on Youtube. High quality product. 5 year warranty! We offer you high-quality products and friendliest customer service are our eternal goal
Turn off the check engine light: LAUNCH CR3001 OBD-II diagnostic device can read and delete stored emission-related codes, pending codes and display code definitions quickly. Turns off the MIL (Check Engine Light), helps reset the monitor before it is brought to smog, and informs you of what's going on before you get the car to repair, saves you the trips to your mechanic
Powerful compatibility: supports OBDII/EOBD/JOBD protocols, works with most US cars after 1996, EU cars after 2000, JP cars after 2006 and newer OBD II & CAN domestic or import vehicles. Supports English, German, French, Spanish, Italian, Russian. and Portuguese. Plug and play: it requires no battery or charger, you just need to connect the diagnostic cable to the DLC socket of the vehicle, the LAUNCH CR3001 can be powered and used.
OBD2 full function: LAUNCH CR3001 OBD2 scan tool can support OBD2 10 modes. I/M: readiness status test, still frame date, live data: display and graphically display data stream, O2 sensor, evap system test, on-board monitor test, read and delete DTCs, identify VIN information, read DTCs. DTC code after turn off MIL (Malfunction Indicator Lights). It is a great diagnostic device car
Classic and portable design: LAUNCH CR3001 OBD2 scanner with a large LCD display (160 x 128 dpi), equipped with a 2.5 foot long cable and made of a very thick flexible insulator. The CR3001 has 4 buttons. The up and down button to scroll the menu, the "OK" and the exit buttons allow you to access the menu and navigate back. The portable size allows you to take with you on your trip.

24,65 € 39,99 €(38% Off off)
08

NAJIESUN

OBD2 Scanner Diagnostic Tool - Powerful Engine Fault Code Reader with Battery Level Indicator, Voltmeter, Still Image and Test of Starter System - Supports Vehicles Since 1996 (USA, EU, Asia)

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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

Real-time data monitoring: the obd diagnostic device displays sensor data in real time and supports map mode, so users can identify error codes with real-time data comparison and vehicle problem identification
Practical operating design: the car diagnostic device is equipped with a 3.2 inch colour LCD screen and seven large buttons, as well as a 100 cm long OBDII and a 50 cm long battery test line, which makes operation easier for car owners and technicians
Powerful functional support: obd-ii diagnostic tools reads and clears fault codes, turns off the engine fault lights, detects I/M status, etc., and has a built-in DTC error library, oscilloscope, etc., and provides comprehensive support for vehicle diagnostics and maintenance
Multifunctional Diagnostic Tool BT80 integrates OBD2 scanning and battery testing, and is suitable for comprehensive diagnostics of various models in the USA, Europe and Asia, including engine testing, O2 sensor tests and EVAP system tests.
Comprehensive battery analysis: the OBD2 diagnostic tool supports the detection of 6V, 12V and 24V batteries. It is suitable for conventional, AGM, GEL, EFBundlithium batteries. It detects voltage, internal resistance, cold start and battery status and locates the battery problems quickly and accurately.

18,99 €
09

EXTSUD

EXTSUD Cable Finder Wall Cable Finder Line Detector Detector Wall Detector Meter Wall Scanner Detector Wall Metal Detector for Wood Iron Metals Cable Metal

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8.6

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 Detection The detector can quickly and accurately detect wood, metal and AC lines hiding in walls, floors and ceilings, providing a wide range of detection functions.
Versatile use: Whether slats, wallpaper, wooden floors, soundproofed ceilings or painted walls, this device works reliably on different surfaces and under different conditions.
SAFETY AT WORK Protect yourself from potential hazards when installing TVs, cabinets, or garage shelves by locating hidden wiring and structures safely and accurately.
PRECISION AND RELIABILITY This versatile tool is an indispensable helper for DIY enthusiasts and professionals who want to work precisely and safely without damaging the building substance.
Easy to use: With five easily switchable detection modes and a clear, easy-to-read display, this device is user-friendly and efficient to use.

23,99 €
10

Taichaeu

OBD2 Diagnostic Device - Bluetooth 5.1 OBD Adapter OBD2 Code Scanner Car Diagnostic Scanner - OBDII Diagnostic Tester Plug with Full OBD2 Functions - Compatible with iOS Android Windows

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54% Off
8.4

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

User-friendly operation: The operation of the OBDII error reader is simple and requires no special skills. Scan the QR code on the box, download the app and connect to the OBD2 scanner. The OBD2 can be connected to any iOS, Android and Windows device. For detailed instructions on iOS smartphone and Android pairing, see the product images or user manual.
Quickly locate problems: the OBD2 diagnostic plug device error code repair guide will guide you quickly to solve problems. Error code database that tells you the reasons and solutions for all fault lights, say goodbye to complicated methods and solve problems more efficiently. If you are not sure whether the professional car scan supports your car, you can leave us a message on Amazon (car make/year/model).
OBD2 Bluetooth 5.1 Adapter: The OBD2 diagnostic device reader has a stable connection, faster data transfer and low power consumption. 10 times faster than other Bluetooth 4.0 adapters or WiFi OBD2 code readers. The Odb2 diagnostic tool quickly detects vehicle problems and provides real-time parameter monitoring. Ensure your driving safety by quickly identifying and fixing problems.
EASY SETUP Identify, fix and clear trouble 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. Works with all OBDII protocol vehicles manufactured in the USA from 1996 and 2000 onwards in Europe, with OBD2 interfaces and 9V to 16V power sources (excluding heavy trucks, diesel, hybrid and electric vehicles).
Advanced data display: view live real-time data with the OBD Bluetooth plug, including engine speed, calculated load value, coolant temperature, fuel system status, vehicle speed, intake manifold pressure, ignition timing, intake air temperature, air flow rate, absolute throttle position, oxygen sensor voltages/associated short-term fuel adjustments, fuel system status, fuel pressure.

4,99 € 10,99 €(54% Off off)