TopDiag Buying Guide & Brand Review (Nov. 2024 Updated)

At a Glance: Top TopDiag Picks

Top 1

TopDiag OBD2 Scanner, Check Engine Code Reader, Diagnostic Scan Tool with 12V...

Top 2

TopDiag TP908B OBD2 Scanner, Car Check Engine Code Reader Universal Engine Fa...

Top 3

TopDiag P100 Automotive Circuit Tester, 12V 24V, 40Ft Cable, Power Circuit Pr...

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Market Overview
TopDiag Reviewed
  • Reviews Analyzed: 1,057 Items
  • CPR Avg. Rating: 7.2 / 10
13 Products Evaluated
  • Highest Price: $199.99
  • Lowest Price: $12.99
  • Avg. Price: $82.84
Price Disclaimer

Top 13 TopDiag Products On Amazon (Verified to buy)

Top 1

TopDiag OBD2 Scanner, Check Engine Code Reader, Diagnostic Scan Tool with 12V Battery Test, Enhanced Code Definition Car Diagnostic Kit for All OBDII Car After 1996 (Red)

TopDiag
HX-1908B
6.4567 x 3.622 x 0.9843 Inches
2.42 Pounds

Features

🚕【Powerful Features】Hold the TopDiag code reader, you get an OBD2 scanner and a 12V battery tester, this car code reader combines the full functionality of the OBD2 scanner and 12V battery tester, including cranking test, battery waveform analysis and charging test. ALL our products are shipped by Amazon, please contact us for a replacement if you received with case broken.
🚕【Full OBDII / EOBD Diagnostics Function】TopDiag Obd2 scanner/ EOBD scanner will assist you to have a quick test on the engine system of OBD II vehicles. Enhanced onboard diagnostic (Mode 6) and EVAP Systems (Mode 8) Test component test, read codes, clear codes, I/M readiness status, battery test, live data, freeze frame, O2 sensor test, vehicle info, DTC lookup, review data, etc.
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Top 2

TopDiag TP908B OBD2 Scanner, Car Check Engine Code Reader Universal Engine Fault Check Emission Monitor Status CAN Diagnostic Scan Tool for All OBD II Protocol Car Vehicles Since 1996 (Red1)

TopDiag
1
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
JDiag Official Store -

Features

🚕【Powerful Features】Hold the TopDiag code reader, you get an OBD2 scanner and a 12V battery tester, this car code reader combines the full functionality of the OBD2 scanner and 12V battery tester, including cranking test, battery waveform analysis and charging test. ALL our products are shipped by Amazon, please contact us for a replacement if you received with case broken.
🚕【Full OBDII / EOBD Diagnostics Function】TopDiag Obd2 scanner/ EOBD scanner will assist you to have a quick test on the engine system of OBD II vehicles. Enhanced onboard diagnostic (Mode 6) and EVAP Systems (Mode 8) Test component test, read codes, clear codes, I/M readiness status, battery test, live data, freeze frame, O2 sensor test, vehicle info, DTC lookup, review data, etc.
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Top 3

TopDiag P100 Automotive Circuit Tester, 12V 24V, 40Ft Cable, Power Circuit Probe Tester, AC DC Digital Voltage Tester, Auto Diagnostic Kit for Vehicle Trailer Truck Motorcycle Boat

TopDiag
TopDiag
6.0 x 2.4 x 1.2 Inches
1.9 pounds
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
TopDiag -

Features

🚘Power Probe Master Kit is an essential tool for automobile user. It is needed for testing components on and off the vehicle, checking for the good and bad grounds, testing for continuity and diagnosing circuit failures. If the vehicle owner keeps it in his car he can check system failure on his own way no need to go to technician.
🚘[The Main Function]: The P100 Power Circuit Probe Kit is mainly used to test car battery voltage, AC and DC voltage test, resistance, leakage, short circuit, component activation overload protection and other car circuit system problems. Auto circuit tester with large battery clip, can carry more load. Support wide input voltage range from 9V to 70V, also support 12V cars and 24V trucks.
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Top 4

TopDiag P200 Automotive Circuit Tester, Power Circuit Probe Kit, 9~30V with Multimeter/Relay/Fuel Injector Tester/Activating Component/0~5V Power with 20ft Cable for 12V 24V Vehicle

TopDiag
15.1575 x 11.4961 x 4.2126 Inches
  • Original Language: English
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
TopDiag -

Features

💪【Powerful Circuit Tester Kit】The P200 Automotive Circuit Tester is the only circuit tester on the market that can be upgraded, a tool for quickly testing all ✅9V-30V✅ electronic systems. It can diagnose problems in the components, electrical circuit systems or fuel injectors of the car in the shortest time. Not only the test time is greatly shortened, but also more intelligent and intuitive, suitable for any novice driver or maintenance engineer.
💪【Fuel Injector & Relay Tester】It is extremely important to regularly test the fuel injector. Damage to the fuel injector can easily lead to unstable idle speed of the engine, increased fuel consumption, causing engine shock. It is worth mentioning that TopDiag P200 auto circuit tester has been added 300+ USD valued powerful functions, namely: ✅Fuel Injector Test✅ Relay test mode. TopDiag makes diagnosing your car easier and saves maintenance costs.
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Top 5

TopDiag BT200/BT200 pro Car Battery Tester, 12V 24V Load Tester, 100-2000 CCA Automotive Charging Cranking System Tester Digital Auto Battery Analyzer (Green, BT200)

TopDiag
Bt200 pro
7.09 x 7.09 x 2.17 Inches
0.99 Pounds
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
TopDiag -

Features

🔥[12V & 24V Automotive Car Battery Tester]➤ TopDiag BT200 Car Battery Tester can test all 12V & 24V 100-2000 CCA batteries , Compatible with the following Regular Flooded, AGM Flat Plate, AGM Spiral, GEL, EFB battery types. This battery load tester supports battery health test, state of charge test, car charging start system test, alternator tester and other functions. Lets you quickly diagnose the condition of your car.
🔥[Fast & Accurate Detection]➤ The digital battery tester automotive has a built-in millisecond level custom integrated chip and uses advanced conductivity technology to directly present the battery's state of health (SOH), state of charge (SOC), test result display value with actual voltage, rated CCA value, measured CCA value, and resistance value in a digital display. It only takes 3 seconds to display the test results with 99.6% accuracy.
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Top 6

TopDiag BT200/BT200 pro Car Battery Tester, 12V 24V Load Tester, 100-2000 CCA Automotive Charging Cranking System Tester Digital Auto Battery Analyzer (Green, BT200 Pro)

TopDiag
Bt200 pro
4.5276 x 2.7559 x 0.5906 Inches
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
TopDiag -

Features

🔥[12V & 24V Automotive Car Battery Tester]➤ TopDiag BT200 Car Battery Tester can test all 12V & 24V 100-2000 CCA batteries , Compatible with the following Regular Flooded, AGM Flat Plate, AGM Spiral, GEL, EFB battery types. This battery load tester supports battery health test, state of charge test, car charging start system test, alternator tester and other functions. Lets you quickly diagnose the condition of your car.
🔥[Fast & Accurate Detection]➤ The digital battery tester automotive has a built-in millisecond level custom integrated chip and uses advanced conductivity technology to directly present the battery's state of health (SOH), state of charge (SOC), test result display value with actual voltage, rated CCA value, measured CCA value, and resistance value in a digital display. It only takes 3 seconds to display the test results with 99.6% accuracy.
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Top 7

TopDiag P200 Power Probe, (2023 Newest) 9V 30V Circuit Tester Automotive w/Power Feed Testing, Fuel Injector Test, Relay Test, Activating Components,AC/DC Voltage Measurement [Online Upgrade]

TopDiag
P200
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
JDiag Official Store -

Features

【ABOUT P200 Car Circuit Tester】The 2023 Newly Upgraded generation of intelligent P200 automotive circuit tester is the only circuit board tester on the market that can be upgraded, a tool for quickly testing all 9V-30V electronic systems. It can diagnose problems in the components, electrical circuit systems or fuel injectors of the car in the shortest time. Not only the test time is greatly shortened, but also more intelligent and intuitive.
【Double Automatic Circuit Breaker Protection】Using short-circuit automatic protection function and 20amp fuse fuse, when it encounters overload, its internal overload protection system will automatically open circuit or power off protection.
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TopDiag P100pro 9-30v car Circuit Tester Automotive 12v 24v Power Circuit Probe Kit Multimeter Digital Oscilloscope Test Tool Activate Vehicle Component Diode Tester Voltage Detector for Motorcycle

TopDiag
P100 Pro Green
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
JDiag Official Store -

Features

👍The P100 Pro probe is a handheld electrical testing tool used to diagnose and troubleshoot automotive electrical circuits. It can be used to test for voltage, resistance, and continuity, and can help identify problems such as bad grounds, short circuits, and open circuits.
👍【Multimeter】A multimeter is a versatile and essential electronic measuring tool used to measure various electrical parameters in a circuit. The name "multimeter" comes from its ability to measure multiple electrical properties, including voltage, current, resistance, capacitance, diode test and continuity.
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Top 9

TopDiag P50 Digital LED Bulb Automotive Circuit Tester, 5V-12V-30V Test Light with Switch Alligator Clip Dual Sharp Stainless Probes, Car Truck Vehicles Fuse Low Voltage Light Tester Electric Test Pen

TopDiag
P50
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
TopDiag -

Features

【Unique Design & Easy to Use】The automotive circuit tester designs with a large alligator clip and two sharp stainless steel probes for one hand easy operation, it can detect hard-to-reach narrow areas and pierce wire. The test light has special shell, mini size, durable ABS material, a top-quality 45-inch silicone wire with sturdy, heat-resistant, high-tensile strength. You can take this mini light tester anytime anywhere.
【LED Digital Display & Bidirectional Voltage Test】The light tester comes with bright LED digital voltage display and can read out volt accurately and quickly, can be clearly seen during the day and night. Connecting a large alligator clip or a second probe to either negative or positive ground, red light indicates positive polarity and green light indicates negative polarity.
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Top 10

Motorcycle OBD2 Code Scanner - Read/Erase Codes, Motorcycle Battery Tester, Motorcycle Diagnostic Scan Tool Charging Test for Honda Yamaha Sym, Kymco, Suzuki (Suzuki)

TopDiag
1
4.88 x 2.87 x 0.7 Inches
0.5975 Pounds
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
TopDiag -

Features

Motorcycle Scanner
Top 11

TopDiag OBD2 Scanner, Car Code Reader for VW Audi Skoda Full-Systems Diagnostic, OBDII Scanner with Battery Tester 3 in 1(TP600B)

TopDiag
TP600B
6.4173 x 3.622 x 0.7874 Inches
  • Original Language: English
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
JDiag Official Store -

TopDiag P200 Automotive Circuit Tester, 9-30V Electric Tool, Power Circuit Probe Tester Multimeter/Activating Component/Relay/Fuel Injector/Oscilloscope/0~5V Power

TopDiag
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
AutelShop -

Features

🚘【Upgraded Circuit Test Kit】: P200 Automotive Circuit Tester features: 1.Intelligent identification of voltage/resistance 2.Multimeter mode 3.Relay test 4.Injector test 5.Diode test 6.Oscilloscope function 7.0-5V adjustable power supply 8.Activation of vehicle components 9.Positive and negative polarity test 10.Intelligent circuit breaker protection 11.Screen style background optional 12.Network can be upgraded online 13.Built-in Multi-lingual settings.
🚘【Smart Test】: Power Circuit Probe Kit can automatically identify the signal under test, Automotive circuit tester Accurately and quickly detect voltage and resistance, and save time for switching between different test modes. Equipped with about 20ft extension cord for you to reach all around your vehicles, trucks and trailers. Also, the built-in flashlight can illuminate your working area.
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Top 13

TopDiag P200 Circuit Tester Automotive 9-30V Electrical Tester Kit Car Test Light, Oscilloscope & Multimeter & Injector & Relay & Continuity & Trailer Light Tester for Vehicle

TopDiag
3.7479 Pounds
Seller CPR Rank Amazon Fulfilled Prime Free Shipping
TopDiag -
Catchera -

Features

【Component Activation Function】P200 diagnostic scanner can activating components of vehicles, which is used to generate activation signals to the detected components, such as activating lights. There are two activation methods, positive activation and negative activation. The maximum current through activation can reach 20A, There are the three activation modes: MOMENT, LACH, and PULSE.
【P200 Automotive Diagnostic Scanner】Topdiag P200 car scanner can be used to test voltage, fuel injector, diode, continuity, polarity, etc, which is the only upgradeable automotive circuit tester on the market. It is a tool for quickly testing all 9V-30V electronic systems.
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Our TopDiag Review

TopDiag products on Amazon (November 2024)

What to buy from TopDiag?

TopDiag sell products mainly in the Automotive category.

Its popular products on Amazon include Circuit Testers And Mechanical Testers

If you intend to buy any of these products, then you can find them easily on Amazon. 

Featured Reviews Related to TopDiag

68,918 Reviews Analyzed
3,877 Reviews Analyzed

TopDiag Pricing

The brand has over 8 products listed on Amazon with a price range of $12.99 to $199.99 form our picks.

Currently, the average price of their product is $82.84 which is considered affordable. You can make your choice from the list of products offered by the TopDiag.

Is TopDiag a good brand? 

A brand is an essential factor when making a purchase. What do we think about the TopDiag? Well, according to the information available on Amazon, TopDiag products are sold by TopDiag.

The seller has received about 64 feedbacks from buyers with an average start rating of 4.9. With a rating as this from the number of feedbacks, we can conclude that TopDiag is the brand is exceptional good, and their products are highly recommended as most consumers were delighted making use of the products from TopDiag.

Can I know who the owner of TopDiag is?

TopDiag is selling on Amazon's North America Marketplaces. You can find out the actual owner of the brand at https://www.uspto.gov/trademarks/search

From there, you can tell whether Amazon owns the brand or not. If you want to buy Amazon branded products, you can go here, and list some of their top brands. Amazon owns 100 private-label brands that operate in different markets.

Similar Competitors Brands like TopDiag on Amazon


Methodology

How We Evaluated TopDiag Products

We are crawling & scraping a large amount of data from 8 TopDiag products and a countless number of reviews, you can gain valuable insights to enhance your understanding of various aspects related to TopDiag, and you can use those data to help you make informed buying Circuit Testers And Mechanical Testers decisions. Those recommend the 13 best products from TopDiag based on thorough analysis and research by our CherryPicks-AI ranking system.

Why create this buying guide?

Our brand guide is designed to provide up-to-date & unbiased information about TopDiag products. Our goal is to empower you with data-driven insights, enabling you to make better shopping decisions efficiently to save time. We prioritize earning your trust by providing reliable information and guidance.


Top 4 TopDiag Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

  • 1. TopDiag : 64 Yearly Feedback , Avg. Ratings 4.9
  • 2. AutelShop : 14 Yearly Feedback , Avg. Ratings 4.8
  • 3. JDiag Official Store : 10 Yearly Feedback , Avg. Ratings 4.9
  • 4. Catchera : 0 Yearly Feedback , Avg. Ratings 0.0
Rank Name Yearly Feedbacks Avg. Ratings
🥇 TopDiag 64 4.9
🥈 AutelShop 14 4.8
🥉 JDiag Official Store 10 4.9
4 Catchera 0 0.0
TopDiag [64] AutelShop [14] JDiag Official Store [10] Catchera [0] TopDiag 73% AutelShop 16% JDiag Official Store 11%