Best Check Engine Tester Reviews & Alternatives

A check engine tester can be a great investment for those who want to simplify their work needs. With the increase in standing desk popularity, many people looking for the best check engine tester feel overwhelmed by the wide range of options available. From traditional check engine tester  to convertible models, the dizzying slew of choices might make you feel the need to take advantage

What are the features that make the best check engine tester? These compact and convenient check engine tester are easy to install and easy to use at the same time. And then there’s the price! Below, we’ll run through the average check engine tester cost of some of the most popular types, so you can get a good idea of where to start with your budget.

The reasons you should trust us

We recommend products in each review using an intensive research process, spending hours combing through the best available models on Amazon. For a product to make our list of top picks, it must hold a solid sales record on Amazon, have consistently positive customer reviews, and offer unique features, among other factors. After narrowing down our recommendations, we conduct additional research to ensure that the products meet our standards. Once we conclude the research phase, we craft a well-rounded, user-friendly article that includes our recommended products and additional information to help homeowners like you make the right purchase. The following key factors are considered when analyzing:

  • The quality of check engine tester
  • Each product’s design
  • How it’s built
  • Price comparison
  • How durable [replace-keyword] is
  • Features
  • Cost-effectiveness
  • Versatility
  • Product usability
  • The functionality of the check engine tester
  • Performance of the products
  • Product dimensions and weight
  • Return policy and warranty, and more.

Best check engine tester & Features

1. FOXWELL NT201 OBD2 Scanner Check Engine Light Car Code Reader OBD II Diagnostic Scan Tool

Features :

  • 👍【Turn off Check Engine Light】+【Easy to Use-Plug & Play】The FOXWELL obd2 scanner is capable of scanning trouble codes, which enables you to figure out what’s wrong with your car to avoid an expensive trip to mechanic. Then the car diagnostic scanner will clear fault code and give you means to turn off the check engine light.Moreover,the car code reader will read live data and retrieve VIN of your vehicle.Definitely it’s a good engine code readers to save your time and money.
  • ✅【One-Click I/M Readiness】+【A Must Have for Quick Smog Check】This FOXWELL scanner NT201 enables you to do a quick smog check to confirm if your car could pass emission test. The Red-Yellow-Green Leds and build-in speaker offers visual and audible indication that you vehicle is ready for the smog test.FOXWELL NT201 code scanner—Best item to have before annual inspection. 🎁Great idea for your friends, husband, family.
  • 👍【PROFEESIONAL 10 OBDII DIAGNOSIS】Foxwell NT201 code reader is equipped with strong full 10 modes obdii diagnostic functions. It can read and erase fault codes, stored code. The automotive scanner diagnostic tool shows I/M readiness, freeze frame data, display live data in the text and graph format, retrieves auto VIN, review the recorded DTC, shows Live O2 Sensor and EVAP Test (Mode 8), On-board Monitoring (Mode 6). All these powerful features are designed to protect your car.
  • ✅【Live Data in Graph】+【ON-BOARD MONITOR TEST】The code reader obd2 scanner would diagnose misfire and the live O2 sensor to monitor that misfire comes from which bank and cylinder. What’s more, this foxwell NT201 ob2 scanner will graph all the real-time streaming data it reads, including but not limited to Engine Coolant Temperature, Short Term Fuel Trim,Long Term Fuel Trim,Engine RPM,Oxygen Sensor Output Voltage, ect.
  • 👍【WIDE VEHICLE COVERAGE】 NT201 scan tool will work on USA and import vehicles, such as light-duty trucks (12v only), SUV and mini-vans with standard OBD2/ EOBD/ JOBD & CAN protocol. European vehicles from 2000, American ones from 1996, and Asian from 2008. Car compatibility may be various, if you cannot confirm it, we are free to provide any help via Amazon.
  • 🚦【Reliable Use & Functions】 The NT201 foxwell obd ii scanner can be used directly with no need for registration or update or battery, as it is already the latest version. Get power directly from OBD2 interface in your vehicle. Multilingual menu supports English, Spanish etc. Lifetime FREE upgrade via Windows 7/8/10 to keep you stay current with the latest development of diagnosis.

Additional Info :

Color Orange
Item Dimensions
Height 0.8
Width 3
Length 4.7
Weight 0.75
Release Date 2019-07-06T00:00:01Z

2. FOXWELL NT301 Plus OBD2 Scanner Battery Tester, 2 in 1 Professional Mechanic OBDII Check Engine Live Data Code Reader Scan Tool with O2 Sensor/Smog Test [ 2022 ]

Features :

  • 🔸[ 2 In 1 Car Troubleshooting Tool, Suitable for Many People] ➤Check diagnostics and battery health all in one car scanner battery tester with one click I/M readiness test to help ensure rapid, accurate diagnosis and timely repair, fits for mechanics, autoshop, dealership, DIYers, or individual users, providing easiest and cost-effective solution for OBD faults and battery status check which will SAVE LOTS TIME AND MONEY for you.
  • 🔸[ Car Batteries Doctor Makes Sure Your Summer Road Trips End on a Happy] 1️⃣Battery health test – tell if the battery is in good working condition, helps you avoid battery damage from unnecessary recharges; 2️⃣Charging systems test – check if the generator/rectifier diode/charging current is normal; 3️⃣Read battery voltage – check if the engine not igniting normally due to the battery? 4️⃣Detect faults/bad cells – tell if the batteries dies.
  • 🔸[ Wide Application, Test with Ease ]➤This car battery tester can check battery condition( such as volts, measured value, soc, soh and res) of various 12V batteries of 100-1100 CCA regular flooded, AGM flat plate, AGM spiral and GEL batteries. Higher flex wires(cables) and clamps that do flex very well and hold their shape for you to perfect position it, and they won’t crack in the cold weather. 📣NOTE: Don’t support alternator test and crank test.
  • 🔸[OBD2 Scanner Live Data, Real-time Diagnostic Data Stream In Graphic] ➤Have you ever hated that checking engine light on your car and always need to know what’s wrong asap? The obd readers will diagnose and clear check car engine .It has live monitoring features as well that let you check the status of sensors while the vehicle is running. Perfect tool to keep in your car for emergencies.
  • 🔸[ One-Click I/M Readiness, A Must Tool for Smog Test ] ➤Are you worried about being stuck in the exhaust emission during the annual inspection of the car? The diagnostic scanner features with I/M key can get emission readiness status, trouble codes with just one single click, to check if all monitors are OK or N/A. Features with colored LED(Green-Yellow-Red) and build-in beeper provide both visual and audible reminders for emission check and DTCs.
  • 🔸[ DTC Lookup to Help Repair ]➤The built-in DTC library with 10W+ detailed definition helps you understand the specific engine faults. In addition, the automotive fault code reader ​not only support the definition and query of fault codes, but also support the fault code maintenance help function. This function provides some maintenance guidance for some specific faults.
  • 🔸[ Multilingual, Wide Compatibility, Lifetime Free Update ] Foxwell obd2 scanner provides multilingual for English, Spanish, German, French, Russian, Japaness and so on. Compatible with 12V Standard OBD2 Cars from 1996(in USA) to now, including compliant cars, light-duty trucks, SUVs, minivans and hybrid.Car compatibility may be various, if you cannot confirm it, pls contact us.Lifetime FREE upgrade via Windows 7/8/10 to keep you stay current with the latest development of diagnosis.
  • 🔸[ FREE Extension Cable, A Great Gift Option ] We offer FREE Foxwell obd2 extension cable, just click “Extra Saving” under price and add it into your cart. In additional, the obd scanner diagnostic tool comes with latest software, which can be used out of box. It is a great gift option for your Dad, husband, boyfriend, family, friends as a gift!

Additional Info :

Color NT301 Plus obd scanner

3. DNOSE DN601 Car Code Reader&12V Battery Voltage Tester 9 Modes OBD2 Scanning Tool Universal Auto OBDII Scanner Check Engine Light for Cars After 1996[2022 New Version]

Features :

  • 👉[Full OBD2 Functions] The DNOSE DN601 car code reader is a new and comprehensive code reader with 9-mode OBDII function. Read and clear engine fault codes quickly, display Live Data and Freeze Frame accurately, show vehicle information and I/M readiness directly, perform On-Board Monitoring Test(Mode 6), O2 Sensor Test and Component Test. Save your time and money on repairing your vehicle.
  • 👉[Check Battery Voltage] The DNOSE DN601 OBDII scanner is not just a OBDII scanner, but also a battery tester. It is able to show the 12V car battery voltage and status for car owners in seconds, which helps users monitor their car batteries more conveniently. With this code reader, you can know the battery condition to decide to change it or not.
  • 👉[Wide Coverage] Supports most 1996 and newer US-based, 2000 EU-based and 2008-Asian based vehicles, including 12V cars, SUVs and light trucks. Also works on ALL OBDII protocols – ISO9141, KWP2000, J1850 PWM, J1850 VPW, and CAN (Controller Area Network). If you are not sure about the compatibility, please do let us know the vehicle information so that we can provide you with further assistance.
  • 👉[Monitor Exhaust Emissions] With the backlit and TFT color screen, this code reader resets the engine light anddisplays the Freeze Frame, Live Data and On-board Monitor clearly and effectively. By using the silicone buttons, you can see the MIL STS, MISFIRE, FUEL SYS, O2 SENSOR, RPM, VSS, MAF, and other essential data to diagnose the root cause that results in vehicle emission-related problems.
  • 👉[11 Languages and DTC Lookup] Be equipped with 11 kinds of language–English, French, Russian, German, Italian, Spanish, Portuguese, Japanese, Simplified Chinese&Traditional Chinese and Polish. DTC Lookup option shows code definitions after choosing the car brand, allowing users to do their job faster, which other simple code readers cannot.

4. Engine Compression Tester Testing Gauge Gage Check Test Tool Kit

Features :

  • 2-1/2 COMPRESSION TESTER GAUGE Specification Easy”
  • Read 2-1/2“ Diameter Face Gauge Features Color Coded Triple
  • Calibration With 0-300psi; 2000kpa 13“ Durable Rubber Hose
  • With Quick Release Includes 14MM And 18MM Adaptors Comes With

Additional Info :

Color Multi
Item Dimensions
Height 8
Width 2
Length 10
Weight 0.6375

5. PARTS-DIYER Durable Auto Car Engine Cylinder Compression Pressure Gauge Check Tester Test Tool Kit 0-300psi

Features :

  • 2-1/2″ COMPRESSION TESTER GAUGE Specification Easy
  • Read 2-1/2″ Diameter Face Gauge Features Color Coded Triple
  • Calibration With 0-300psi; 2000kpa.Can also be used for motorcycle, ATV, snowmobile, and marine applications
  • Includes 13″ durable rubber hose, side release valve and adapters (12mm, 14mm and 18mm)
  • Package Includes: 1 x Engine Compression Test Tool Kit. Works on conventional, electronic, and computerized domestic and import vehicles

Additional Info :

Color Black
Item Dimensions
Height 3.94
Width 7.08
Length 7.08
Weight 0.88

6. KZYEE KC501 OBD2 Scanner, ABS SRS Code Reader Airbag Scanner for Auto Check Engine Light Full OBD II Car Diagnostic Scan Tool, Vehicle Code Tester Cars Reading & Erasing Codes

Features :

  • 【ABS & SRS DIAGNOSTIC】KZYEE KC501 car diagnostic scanner can read/erase trouble codes from vehicle’s ABS/SRS system, and show definitions of each code, display live data of multiple sensors in graph to locate fault causes and fix its potential problems in time. This OBDII scanner diagnoses ABS/ SRS system fault codes on common US car brands such as Ford, Chevy, Dodge, GM, etc and allows you to turn off the warning lights for you after fixing the problem.
  • 【FULL OBD2 MODEL】KZYEE KC501 OBD2 scanner is specifically designed to perform ABS SRS sytems diagnosis and all 10 modes of tests on OBD2/CAN system.Including read codes, erase codes, DTC search library, retrieves I/M monitor readiness test, displays freeze frame data, reads live data, performs O2 monitor test, on-board monitor test, component test, existing module and vehicle information (VIN, CIN and CVN).
  • 【WIDLY COMPATIBILITY】 Supports multiple languages and all OBDII protocols: quickly reads and clears check engine light codes on all standard OBD2 protocols ( KWP2000, ISO9141, J1850 VPW, J1850 PWM and CAN.) Vehicles with 16 PIN interfaces. Works on more than 60 vehicle models worldwide, most of 1996 US-based, 2002 EU-based, 2005 Asian-based or newer OBD II & CAN domestic or imported vehicles, including cars, SUVs, light trucks and 12V diesel. TIPS : Not suitable for 24V heavy trucks.
  • 【INNOVATIVE DESIGN & PRINT】This code reader designed with 3 indicator lights to directly remind the user whether there are error codes or not. With KC501 OBD2 scanner, you can save, review and print diagnostic data and results for further use. The Print Data function allows printing out diagnostic data recorded by the scan tool or customized test reports by connecting the scan tool. The built-in I/M button makes checking engine status faster and easier.
  • 【FREE LIFE-TIME UPDATES】The KC501 auto diagnostic scanner comes with lifetime FREE software updates. Through KYZEE official website, you can update code reader for free to improve functionality and compatibility. We offer 12 months warranty for KZYEE KC501 OBD2 Scanner, including all online updates and technical support.If you have any question, please contact us by email, we will reply you within 12 hours.

Additional Info :

Item Dimensions
Height 13.779527545
Width 3.93700787
Length 11.023622036
Weight 0.99

7. Car Engine Oil Diagnostic Tool,Engine Oil Tester Auto Quality Check Diagnostic Tool Analyzer Detector with LED

Features :

  • 【Higher Accuracy】Engine Oil Tester With an optical probe, simply place the probe in the dipstick to get the test results.One‑click start detection, higher accuracy, bring you more convenience.
  • 【Feature】Auto Oil Quality Check,The LED display can accurately display the results and the readings are clearer.Use the optical principle to check the engine oil condition and get the latest oil condition in anytime and anywhere.
  • 【Easy to Carry】Car Oil Analyzer,Mini portable, accurate and effective measurement, extend the life of the car.Practical and convenient in use.Such a practical tool you will need it.
  • 【Function】The oil detector can help extend the life of the car. Failure to replace the oil and poor quality oil in time will reduce lubrication, reduce the sealing effect, reduce the cooling effect and reduce the cleaning effect.
  • 【Note】1. Please do not test whether the engine temperature is higher than 60℃. Please check the thermometer on the dashboard. The test temperature must be below 60°C.2. Before testing, please check whether the probe is clean and ensure that the probe is covered with oil during the test.3. The new engine oil shows 100.0%, and the normal range is 30%‑100%. If the oil test result is less than 30.0%, the detector will sound an alarm indicating that you should change the oil.

Additional Info :

Color popular
Item Dimensions
Height 0
Width 0
Length 0

8. FAERSI Cylinder Leak Detector – Engine Compression Diagnosis Tester Kit – Cylinder Leakage Pressure Detector Test Set for Piston Ring, Valve, Head Gasket

Features :

  • The Cylinder Leak Detector Kit is designed to easily detect a variety of engine faults, including worn piston rings, worn valves, cracked cylinder walls, and blown head gaskets.【Including】12-month WARRANTY, if you have any question, please feel free to contact us.
  • The Engine Compression Diagnosis Tester Kit also can check the amount of leakage and locate leaks area in an engine cylinder to help determine the source.
  • Suitable for work on any petrol engine with 12 or 14mm spark plugs, and ideal for testing trucks & late model cars where clearance is minimal.
  • The cylinder leakage pressure detector test set with a ABS plastic blow-molded case can keep the tools organized, safe storage and easy to transport.
  • Package include: 480mm hose, 12mm and 14mm spark plug adapters, fixed short connector, fixed long connector, Gauge (2-1/2”):0-100 psi(0-7bar), air regulator, instructions and carrying case.

9. INNOVA 3040RS, OBD2 Scanner, Live Data Streamer, Battery/Alt Tester, Reset Check Engine Light/Brake Light/Oil Light, Free Mechanic Recommended Fix & Parts & Est Repair Cost, Lifetime Free Update

Features :

  • EASY TO USE – With INNOVA 3040RS OBD2 Engine Diagnostic Code Reader Tool, it is very simple for someone who has no experience. Always good to go to a real mechanic if you are concerned or have no experience, but this can at least diagnose the problem and NO NEED to try google the severity of the issue.
  • FULL 10 MODES AND MORE – The INNOVA 3040RS Code Reader Tool get unparalleled access to global OBD2 systems, functions, and information. The Scanner tool included for free and now with unlimited vehicle health reports. It empower yourself with verified fixes, parts required for repair, maintenance schedules, technical service bulletins, recalls, and more.
  • BATTERY TEST TO SAVE YOUR TIME – The INNOVA 3040RS Engine Diagnostic Code Reader Tool ensures your vehicle is programmed correctly to accept a new battery. It does so by checking if the batteries and alternators are in line with voltage specs recommended for the vehicle. When troubleshooting a no start/hard start condition, carrying out this test really helps in knowing where to look, hence saving time.
  • LIVE DATA – With the INNOVA 3040RS OBD2 Scanner you can get your vehicle’s essential information like RPM, speed, and oil temperature in real-time to help identify and correct problems.
  • DESIGNED IN USA – The INNOVA 3040RS Engine Diagnostic Code Reader is proudly American owned. It empowers the home mechanics with its professional-level functionality but entry-level difficulty, for it is designed and developed in the US and supported by unmatched technical assistance from a staff of all ASE certified technicians.

Additional Info :

Item Dimensions
Weight 0.81

10. Orion Motor Tech Compression Tester, 8pcs Engine Compression Tester Small Engine Compression Gauge with Adapters for Cars Trucks Motorcycles Marines ATV UTV Snowmobiles

Features :

  • ADVANCED COMPRESSION TEST: Includes everything you need for a fast & effective compression pressure testing of petrol, gas, and fuel engine cylinders for most spark plug types on cars, trucks, motorcycles, marines, ATVs, UTVs, snowmobiles, boats, & more
  • UNIVERSAL COMPATIBILITY: Includes multi-size adapters (straight, curved, & male fittings) for compatibility with a wide range of vehicles. All components are protected in a custom ABS carry case for easy organization and transport.
  • STURDY & ANTI-RUST: Easy-to-read instrument panel with dual units (0-300 psi, 0-20 kg/cm²). Acrylic glass gauge cover with anti-scratch coating and rubber protective cover for outstanding shock-absorption performance.
  • ALL-IN-ONE COMPRESSION TESTER KIT: 1x spring buckle gauge, 1x straight rubber cone end adapter, 1x curved rubber cone end adapter, 4x brass adapters with metric male fittings & O-rings: M10, M12, M14, M18; 1x extension hose (14″ length)
  • SATISFACTION GUARANTEED: Look to Orion Motor Tech for the finest craftsmanship and the most reliable engine compression tester kit, rigorously tested and backed with our usual strong warranty and friendly 24/7 customer service, ensuring years of satisfied use!

Additional Info :

Color Blue

Buying Guide for check engine tester

To help you buy the perfect check engine tester for your needs and requirements, we have mentioned some of the best check engine tester in this article. Not only that, but you can also learn about their differences as we have mentioned their major features and options.

To help you on your way, we’ve listed some questions you may want to consider before making any purchase.

  • Why do I want to buy this?
  • Do I need it or just want it?
  • Am I getting the best deal?
  • How often will I use it?
  • Can I pay cash for it?
  • Is it budgeted for?
  • Can I borrow it?
  • Can I get it used?

Although, if you still want to learn more about these check engine tester for buying the perfect one, we are here with a detailed buying guide just for you. Since this buying guide is related to check engine tester, you can find many major features and aspects related to check engine tester. Thus, you can easily choose the perfect one by going through this article until the end.


The check engine tester should last more than one use and hold up against normal wear and tear. We recommend reading the product description before purchasing check engine tester to ensure they’ll last a while. Additionally, pay attention to the wash instructions.


When choosing the best check engine tester, you must consider its versatility.  It is important to make sure that your unit can be used for performing different tasks.

For instance, if you need to use your unit for other purposes in any other materials, getting the one with a versatile design will be an ideal option for you.


The brand is another crucial factor you must consider while looking for the check engine tester.  You will find both well-known and unknown brands in the market. If you are looking for a reliable and durable model, I recommend getting one from a well-known brand.

They use high-quality materials and the latest technology to manufacture their products.  As a result, you will be able to get a durable and long-lasting check engine tester.

Ease of Use

While choosing the check engine tester, you must ensure that it is easy to use.  It is important to get the one that comes with a user-friendly design.


As a result, you will be able to use your unit for a long time without facing any discomfort.  Also, getting the one that comes with an easy-to-use design will help you save a lot of time and effort.


The price is another essential factor you must consider while looking for the check engine tester.  You need to get the one that fits your budget perfectly.

Getting the one that comes at an affordable price will help you save a lot of money.  However, you must ensure that it meets your needs and requirements perfectly.


The check engine tester should be easy to carry for you. Therefore, consider the size, style, design, and all the other basic features to check for the actual portability of the device. Portability comes with comfort and ease, and you need to look for all the features to look for a suitable check engine tester.


The price of your check engine tester will depend upon its features and the overall quality. There are some inexpensive options in the market, but they may not have the best features.

The term ‘budget’ is broader because it completely depends on the user who wants to purchase the check engine tester. In this case, you can prepare a list of all the features you want to have in your check engine tester. Then, look for the product that comes with these features and works well.

After that, you should carefully check the prices of each air compressor machine on your list. This will give you a precise idea about the budget you need to prepare for the check engine tester you should go after.


It is important to consider your unit’s weight while working in congested areas. Getting a lightweight model will be ideal if you need to work regularly in difficult-to-reach places.

However, if portability is not your concern and you are looking for a durable model, you can go for the one with a little heavyweight.


The warranty of check engine tester is when the manufacturer offers free repairs or replacements for any damages that occur to the product.

You need to check the warranty of check engine tester before buying it, as you don’t want a product that doesn’t come with a warranty.

At the same time, you also need to remember that some check engine tester come with a longer warranty than others, so select one with a long warranty if possible.

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