TOP 10 DIAGNOSTIC TEST MEASUREMENT TOOLS REVIEWS

The Best Diagnostic Test Measurement Tools for Accurate Results

Find the best diagnostic test measurement tools, including OBD2 scanners and code readers, for accurate vehicle and system diagnostics. Shop top-rated tools now!

Whether you're a professional mechanic or a dedicated DIY enthusiast, having reliable diagnostic test measurement tools is essential for maintaining and repairing modern vehicles and other complex systems. These tools provide the crucial data needed to pinpoint issues quickly, saving time and money on costly repairs.

The majority of the top-selling diagnostic tools currently focus on automotive applications, specifically OBD2 scanners. These devices interface with your vehicle's onboard computer to read and clear fault codes, monitor live data, and perform various system checks. Choosing the right tool depends on your specific needs, whether it's a simple code reader for checking the 'Check Engine Light' or a more advanced scanner with battery testing and live data capabilities.

Below, we've compiled a selection of the best diagnostic test measurement tools available, highlighting their key features to help you make an informed decision.

01
ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool, Read and Clear Error Codes for 1996 or Newer OBD2 Protocol Vehicle (Black) Global Recycled Standard Global Recycled Standard Global Recycled Standard

ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool, Read and Clear Error Codes for 1996 or...

ANCEL

4.6 (2,182 reviews)
  • Classic enhanced universal OBD II scanner
  • Reads and clears engine fault codes (DTCs)
  • Supports all OBD2 protocols (1996 and newer vehicles)
  • Simple plug-and-play design with large LCD display
02
MOTOPOWER MP69033 Car OBD2 Scanner Code Reader Engine Fault Scanner CAN Diagnostic Scan Tool for All OBD II Protocol Cars Since 1996, Yellow

MOTOPOWER MP69033 Car OBD2 Scanner Code Reader Engine Fault Scanner CAN Diagnostic Scan Tool for All OBD II Protocol Cars Since 1996, Yellow

MOTOPOWER

4.6 (2,990 reviews)
  • Affordable and easy-to-use OBD2 code reader
  • Turns off Check Engine Light (CEL) and clears codes
  • Retrieves generic and manufacturer-specific codes
  • Supports CAN and all other current OBD II protocols
03
FOXWELL NT301 OBD2 Scanner Live Data Professional Mechanic OBDII Diagnostic Code Reader Tool for Check Engine Light Global Recycled Standard Global Recycled Standard Global Recycled Standard

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

FOXWELL

4.5 (4,468 reviews)
  • Professional-grade OBDII diagnostic code reader
  • Displays live sensor data in text and graph format
  • Performs I/M readiness test (Smog Check)
  • Built-in DTC lookup library for code definitions
04
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

OBD2 Scanner with Upgrade Battery Tester - Diagnostic Tool for Cars That Check Engine Light & Emissions Readiness Read and Clears Vehicle Error Cod...

OBD2

4.6 (826 reviews)
  • 2-in-1 OBD2 scanner and upgraded battery tester
  • Reads and clears vehicle error codes (DTCs)
  • Checks emissions readiness (I/M Monitor Status)
  • Compatible with all OBD II protocol vehicles since 1996
05
ANCEL AD410 PRO OBD2 Scanner and Battery Tester, 2-in-1 Car Diagnostic Tool, Check Engine Light, EVAP Test, Live Data, 12V Battery Analyzer with Cranking & Charging System Test for Car Motorcycle

ANCEL AD410 PRO OBD2 Scanner and Battery Tester, 2-in-1 Car Diagnostic Tool, Check Engine Light, EVAP Test, Live Data, 12V Battery Analyzer with Cr...

ANCEL

4.6 (2,120 reviews)
  • Advanced 2-in-1 OBD2 scanner and 12V battery analyzer
  • Includes Cranking & Charging System Test capabilities
  • Supports EVAP system test and O2 sensor test
  • Displays real-time live data stream for in-depth analysis
06
Identify Diagnostics Drug Test Cups | 5 Pack | 12 Panel CLIA Waived Instant Urine Marijuana Drug Test Kit for AMP,BAR,BUP,BZO,COC,MDMA,MET,MOP|OPI,MTD,OXY,PCP,THC

Identify Diagnostics Drug Test Cups | 5 Pack | 12 Panel CLIA Waived Instant Urine Marijuana Drug Test Kit for AMP,BAR,BUP,BZO,COC,MDMA,MET,MOP|OPI,...

Identify

4.6 (4,662 reviews)
  • Non-automotive diagnostic measurement tool (Drug Test Kit)
  • 12 Panel CLIA Waived instant urine testing cups
  • Tests for common substances including THC, OPI, COC, MET, etc.
  • Accurate and rapid results for workplace or home use
07
Innova 5210 OBD2 Scanner & Engine Code Reader, Battery Tester, Live Data, Oil Reset, Car Diagnostic Tool for Most Vehicles, Bluetooth Compatible with America's Top Car Repair App

Innova 5210 OBD2 Scanner & Engine Code Reader, Battery Tester, Live Data, Oil Reset, Car Diagnostic Tool for Most Vehicles, Bluetooth Compatible wi...

Innova

4.5 (3,600 reviews)
  • Premium OBD2 scanner with Oil Reset functionality
  • Integrated battery and charging system tester
  • Bluetooth connectivity for use with the RepairSolutions2 App
  • Reads engine codes, live data, and performs I/M readiness
08
OBD2 Scanner, CGSULIT SC103 Car Code Reader Diagnose Check Engine Light Smog Check DTCs Scan Tool Live Data Stream Voltage Test for Vehicles Since 1996

OBD2 Scanner, CGSULIT SC103 Car Code Reader Diagnose Check Engine Light Smog Check DTCs Scan Tool Live Data Stream Voltage Test for Vehicles Since ...

OBD2

4.5 (820 reviews)
  • Budget-friendly OBD2 code reader and diagnostic tool
  • Performs Smog Check (I/M readiness) and voltage test
  • Displays live data stream for essential sensor readings
  • Diagnoses Check Engine Light and retrieves DTCs
09
BlueDriver Bluetooth Pro OBDII Scan Tool for iPhone & Android - No Subscription Fee - OBD2 Car Scanner and Code Reader - Diagnose Check Engine, ABS, SRS, Airbag & 7000+ Issues on Vehicles 1996+

BlueDriver Bluetooth Pro OBDII Scan Tool for iPhone & Android - No Subscription Fee - OBD2 Car Scanner and Code Reader - Diagnose Check Engine, ABS...

BlueDriver

4.5 (1,962 reviews)
  • Bluetooth-enabled professional OBDII scan tool (App required)
  • Diagnoses advanced systems: ABS, SRS (Airbag), and Transmission
  • Provides verified fixes sourced from professional mechanics
  • No subscription fees and compatible with iOS and Android
10
Upgraded of NT301, FOXWELL NT301 Plus 2-in-1 OBD2 Scanner Battery Tester, Professional Check Engine Code Reader Car Diagnostic Tool, 12V Cranking Charging Analyzer for 1996+ Newer Vehicle

Upgraded of NT301, FOXWELL NT301 Plus 2-in-1 OBD2 Scanner Battery Tester, Professional Check Engine Code Reader Car Diagnostic Tool, 12V Cranking C...

Upgraded

4.5 (986 reviews)
  • FOXWELL NT301 upgraded version with battery testing
  • 2-in-1 OBD2 scanner and 12V Cranking/Charging Analyzer
  • Reads and clears Check Engine Light (CEL) codes
  • Supports data recording and playback for detailed analysis

Frequently Asked Questions

What is the difference between an OBD2 scanner and a code reader?

A basic code reader typically only retrieves and displays generic Diagnostic Trouble Codes (DTCs) related to the 'Check Engine Light.' An OBD2 scanner, or diagnostic scan tool, is more advanced, offering features like live data streaming, I/M readiness status, battery testing, and sometimes access to proprietary manufacturer-specific codes and systems (ABS, Airbag, etc.).

Do I need a diagnostic tool if my car seems fine?

Yes. Diagnostic tools are useful for proactive maintenance. They can check I/M readiness (essential for emissions testing) and monitor battery health (if equipped with a battery tester), allowing you to catch minor issues before they escalate into expensive repairs.

Are these diagnostic tools compatible with all car brands?

Most automotive diagnostic tools listed here are compatible with all OBD II protocol vehicles manufactured since 1996 (in the US). However, advanced features like ABS or SRS scanning may only be available for specific makes and models, so always check the product specifications for compatibility.

Final Thoughts

Investing in a high-quality diagnostic test measurement tool is the smartest way to take control of your maintenance and repair process. Whether you need the simplicity of the MOTOPOWER MP69033 or the professional depth of the BlueDriver or ANCEL AD410 PRO, the right tool is available to provide accurate, actionable data. Browse our top selections today and ensure you have the precision needed for reliable diagnostics.