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Best diagnostic test measurement tools - October 2025

Last Updated - October 30, 2025

1
Best Choice

✖
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.

FOXWELL

FOXWELL Car Scanner NT604 Elite OBD2 Scanner ABS SRS Transmission, Check Engine Code Reader for Cars and Trucks, Diagnostic Scan Tool with SRS Airbag, Automotive Diagnostic Tool with Live Data

Picked by 590 people in the last week

FOXWELL

$169.99

More Details
Main highlights
- [Solid protective case KO plastic carrying bag] + [Lifetime update] Almost all same price-level car scanner diagnostic tool only offers plastic bag to hold the scanner.However, NT604 Elite automotive scanner is equipped with solid protective case, preventing your obd2 scanner from damage. Then you don’t need to pay extra money to buy a solid toolbox.
- [Fantastic AUTOVIN] + [No extra software fee] Through the AUTOVIN menu, this NT604 Elite car scanner allows you to get your V-IN and vehicle info rapidly, no need to take time to find your V-IN and input one by one. What's more, the NT604 Elite ABS SRS scanner supports 60+ car makes from worldwide (America/Asia/Europe). You don’t need to pay extra software fee.
- [Easy to Use—Work Out of the Box] + [FOXWELL 2025 New Version] FOXWELL NT604 Elite scan tool is the 2025 new version from FOXWELL, designed for car owners who want to figure out the cause of issues before fixing car problems by scanning common systems like ABS, SRS, engine, and transmission. The NT604 Elite obd2 scanner diagnostic tool comes with the latest software, ready to use out of the box—no need to waste time downloading software first.
- [Affordable] + [Reliable Car Health Monitor] Will you be confused what happens when the warning light of ABS/SRS/transmission/check engine flashes? Instead of taking your cars to dealership, this FOXWELL scanner will help you do a thorough scanning and detection for your cars and pinpoint the root cause. It will t-urn off the car warning light after the problem is fixed.👉TIPS: Airbag crash/collision data can NOT be cleared even if you replace the new airbag.
- [5 in 1 Car Diagnostic Scanner] Compared with obd scanners (50-100), NT604 Elite code scanner not only includes their OBDII diagnosis but also serves as ABS/SRS scanner, transmission and check engine code reader. When it’s an odb2 scanner, you can use it to check if your car is ready for annual test through I/M readiness menu. In addition, live data stream, built-in DTC library, data play back and print, all these features are a big plus for it. Note: doesn't support maintenance functions.
- Kindly note: The FOXWELL NT604 Elite code reader provides specialized diagnostics for control modules including Engine, ABS, SRS, and Transmission systems. It does NOT support service functions such as battery registration, ABS bleeding, throttle body relearn, or ABS relearn. Compatibility varies by vehicle make, model, and year—please verify before purchase. Please be aware that this scanner does not work with 24V trucks.
$169.99
2

✖
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.

GEARWRENCH

GEARWRENCH Professional Bi-Directional Diagnostic Scan Tool | GWSMARTBT

GEARWRENCH

$149.00

More Details
Main highlights
- Supports 23 vehicle reset/relearn functions, including throttle matching, ABS bleeding, TPMS reset, etc.
- OE-Level diagnostics on your smart device
- Live data mapping and freeze frame capturing
- Full bi-directional control, live actuation test
- FREE Software updates - No subscriptions, no fees – EVER
$149.00
3
30% Off

✖
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.

UMEIJA
30% Off

UMEIJA OBD2 Scanner with Upgrade Battery Tester - Diagnostic Tool for Cars That Check Engine Light & Emissions Readiness Read and Clears Vehicle Error Codes for All OBD II Protocol Vehicles Since 1996

UMEIJA

$20.98

$29.98
(30% Off)

More Details
Main highlights
- Wide Vehicle Compatibility: Multiple Uses - The OBD2 professional automatic scanner supports all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN.Works with most 1996 and newer US cars, 2000 EU and Asian cars, light trucks, SUVs, and newer OBD2 and CAN vehicles both at home and abroad. Please check compatibility with your model before purchasing. This car code reader supports multiple languages such as English, German, French, Spanish, Finnish, Dutch, Russian and Portuguese, making it an ideal choice for international users, deeply loved and highly recommended by customers worldwide.
- Service Guarantee and Gift Attributes: This OBD2 scanner has a unique patented design and a dedicated technical team as well as a strong guarantee service. At the same time, professional customer service staff can answer your questions at any time, help you use the product, and ensure your user experience.which is very safe and convenient for you.This car automatic scanning tool has no seasonality and can be used normally and perform well all year round. This stylishly designed, portable and powerful professional automatic car diagnostic scanner is perfect as a gift for your mechanic friends. If you are looking for a gift with practical performance, this product is a good choice.
- Rugged and Compact Design: The OBD2 scanner is a compact and well-designed car parts. It weighs 12 ounces and measures 8.9 x 6.9 x 1.4 inches. It comes with a 2.5-foot heavy-duty cable with a standard 16-pin OBD connector. The cable is made of a very thick flexible insulation layer and is sturdy and durable. Since OBD2 scanners can easily fall to the ground while working in the car, the structural design of the scanner is very demanding, and this OBD2 scanner can well meet the customer's needs for sturdiness and compactness.
- Multi-Function: This code reader for cars and trucks is like a micro mechanic, which can quickly read and clear engine error codes, live data stream (with graphic display), view freeze frame, check MIL readiness status, read I/M monitoring readiness status and collect vehicle information, display vehicle indicators in detail. You can use it to check fault codes by yourself and display code definitions, understand the health of the vehicle, be fully prepared for going to the auto repair shop for car maintenance.Note: It cannot detect battery life, gearbox faults, output current test, can only detect battery voltage, and can clear fault codes of repaired vehicles.ABS code is not supported.
- Battery Tester and Advanced OBDII System Diagnostics: This advanced code reader with battery has a built-in easy-to-use battery tester for monitoring battery life and voltage, helping you quickly assess the battery health of your vehicle, prevent unexpected failures and ensure reliable car performance. At the same time, this engine fault code reader provides advanced diagnostic functions, including testing the O2 sensor and EVAP system to measure oxygen concentration, control the amount of fuel injection, reduce fuel consumption, maintain optimal combustion conditions, improve engine efficiency; reduce exhaust emissions, and better protect the environment.
- Accurate, Fast and Worth Having: The OBD2 code reader adopts an upgraded microprocessor, its powerful performance provides fast and accurate results and displays them on the screen, draws and records real-time vehicle sensor data, helps you understand the condition of the car, quickly diagnose and repair common car problems. 6 buttons for quick operation, plug-and-play design makes it easy to use, you can easily operate it without reading the manual. The OBD2 scanner is not only designed to be lightweight and portable, but also simple, accurate and fast to operate, affordable and more cost-effective, it is a must-have tool for home DIY diagnosis or mechanics to use in auto repair.
$20.98
$29.98 (30% Off)
4
Best Value
40% Off

✖
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.

Zmoon
40% Off

ZMOON ZM201 Professional OBD2 Scanner Diagnostic Tool, Enhanced Check Engine Code Reader with Reset OBDII/EOBD Car Diagnostic Scan Tools for All Vehicles After 1996, 2025 Upgraded

Zmoon

$29.99

$49.99
(40% Off)

More Details
Main highlights
- User-Friendly Design: The scanner boasts a 2.8-inch color screen that allows you to choose between dark and light modes and adjust the brightness according to your preference. Audible beep notifications (which can be disabled) accompany key presses, providing an intuitive user experience. The vehicle status indicator light turns red when a fault is detected, yellow when there's an incompatibility/connection failure, and green when the car is successfully connected.
- Full OBDII Modes Scanner for Car: As professional car scanner, ZM201 has all the OBD2 functions you need. Read & clear codes, turn off engine light or MIL, view freeze frame, read I/M readiness, retrieve vehicle VIN, battery voltage test, live data stream (with graphing display), built-in 35901 DTCs, O2 sensor test, onboard monitoring mode, and perform component testing etc.
- Enhanced OBD2 Scanner Diagnostic Tool: Live data and DTC replay combined with printing function, you can connect it to a computer for fault data printing, prevent auto repair shops from charging randomly, save money and time. ZM201 obd scanner also comes with free-lifetime software updates, ensuring you always have the latest features and improvements.
- Convenient Shortcut Functions: The addition of shortcut keys enhances the user experience. Pressing F1 enables you to quickly retrieve trouble codes, while F2 provides instant access to I/M readiness information. We've also introduced left and right navigation buttons (the previous model had only up and down buttons), making operation even more convenient.
- Compatible with 98% Vehicles: ZM201 OBD2 scanner for car is compatible with most cars after 1996(USA)/2002(EU)/2008(Asia). If your car has an OBD2 port (16Pin), and the production time meets the above timeline, then your vehicle is compatible. But it is not compatible with new energy vehicles, hybrid vehicles, and models that do not comply with the OBD2 protocol.
- 35,901 DTC Lookup: ZM201 car code reader built-in 35,901 DTCs, the old model obd2 usually only have 3,000-10,000. So the ZM201 car scanner has a huge advantage, which means that this obd2 scanner can better help diagnose and solve your vehicle faults. This is a great option if you want to replace or upgrade an existing car scanner.
$29.99
$49.99 (40% Off)
5
37% Off

✖
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.

FOXWELL
37% Off

FOXWELL NT301 OBD2 Scanner Live Data Professional Mechanic OBDII Diagnostic Code Reader Tool for Check Engine Light

FOXWELL

$55.99

$89.90
(37% Off)

More Details
Main highlights
- [Worthy to Own] Recommended by most professional mechanics on Youtube. Codes analysis and Printer compatible. Unique PATENTED design, 2.8" color screen, F-ree Lifetime Update and 1-year seller assurance with EXCLUSIVE tech and service team.
- [Vehicle CEL Doctor] The NT301 obd2 scanner enables you to read DTCs, access to e-missions readiness status, turn off CEL(check engine light) or MIL, reset monitor, read live data and retrieve VIN of your vehicle. The fault code only can be cleared after repair finished by NT301, as like all the obd2 scanner's working principle.
- [S-mog Check Helper] Read/Erase and I/M readiness hotkeys make it easy to use the car computer reader right out of the package. Red-Yellow-Green Leds and build-in speaker indicate the readiness status for confident e-missions test.
- [Read Fault Codes] About the read code funtion needs to be in the ignition on state and if the check engine light is on. If the vehicle is compatible with NT301, please select correct menu & ensure no hardware/wiring issues/obd2 interface damage for accurate results. The correct menu: Select OBDII-> Wait for seconds-> Select Read codes
- [Please Note] If you are not pleased with your NT301 and choose to return it, please kindly mark it as unsellable to avoid and used one is resold again to other customers. Appreciate very much. If you received the used product, wrong items, missed parts or package damage, we also are responsible for these problems and will provide new replacement or refund.
- [OBDII Protocols & Compatibility] The NT301 supports OBDII protocols like KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. The device is compatible with 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs. Kindly check the vehicle compatibility before the purchase since the function comatibility and car compatibility vary from different car models, year and vin.
- [Home Necessity + Plug & Play] Open to global customers. No built-in battery required, so it's powered when connecting with car obd2 port or usb cable. No need to update before use. NT301 obd scanner is charged directly from the 16pin DLC in your vehicle. It is recommended as a necessity in your toolbox and great choice for Home and Autoshop Mechanics.
- [Accuracy & Streams] Live data graphing and logging. Accurately read error codes for most Worldwide cars, SUVs, light trucks and 12V diesels equipped with Obd2. Graphing live vehicle sensors data allows you to focus on any suspicious data and trend. It's a basic code reader and doesn't support to scan and read codes about any car systems like ABS, TPMS, SRS, SAS systems. It also doesn't have any special functions like EPB reset/battery registration/oil reset/programming.
$55.99
$89.90 (37% Off)

Best diagnostic test measurement tools - October 2025

FOXWELL Car Scanner NT604 Elite OBD2 Scanner ABS SRS Transmission, Check Engine Code Reader for Cars and Trucks, Diagnostic Scan Tool with SRS Airbag, Automotive Diagnostic Tool with Live Data

GEARWRENCH Professional Bi-Directional Diagnostic Scan Tool | GWSMARTBT

UMEIJA OBD2 Scanner with Upgrade Battery Tester - Diagnostic Tool for Cars That Check Engine Light & Emissions Readiness Read and Clears Vehicle Error Codes for All OBD II Protocol Vehicles Since 1996

ZMOON ZM201 Professional OBD2 Scanner Diagnostic Tool, Enhanced Check Engine Code Reader with Reset OBDII/EOBD Car Diagnostic Scan Tools for All Vehicles After 1996, 2025 Upgraded

FOXWELL NT301 OBD2 Scanner Live Data Professional Mechanic OBDII Diagnostic Code Reader Tool for Check Engine Light

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