Best Digital Leak Down Tester Reviews & Alternatives

A digital leak down 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 digital leak down tester feel overwhelmed by the wide range of options available. From traditional digital leak down 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 digital leak down tester? These compact and convenient digital leak down 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 digital leak down 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 digital leak down 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 digital leak down tester
  • Performance of the products
  • Product dimensions and weight
  • Return policy and warranty, and more.

Best digital leak down tester & Features

1. Longacre® 52-73014 Digital Engine Leak Down Tester

Features :

  • Check ring seals, valves, and even head gaskets
  • Much more accurate than traditional testers – Reads critical leak down to .5% (1/2 of 1%)
  • Control inlet valve and helps to avoid extra shock to gauges when air is turned on, allowing more accurate readings, very easy to use and longer gauge life
  • Rugged design features rubber bumpers to protect gauges
  • Silver carrying case included

Additional Info :

Color 73014
Item Dimensions
Height 5.4
Width 9.2
Length 12.2
Weight 4.55
Release Date 2016-10-27T00:00:01Z

2. OTC 5609 Cylinder Leakage Tester Kit , black

Features :

  • OTC’s Cylinder Leakage Tester Kit quickly diagnoses internal engine problems like bad rings, valves, and leaking head gaskets and comes complete with adapters for most applications
  • Dual 2-1/2 inch gauges read 0-100 psi and 0-700 kPa and feature chrome bezels and rugged protective outer boots
  • Kit features a pressure regulated manifold with quick couplers, 24 inch long 14mm flex hose, and 10 mm, 12 mm, and 18 mm thread adapters
  • Rugged, blow molded storage case with removable lid keeps components organized and protected when not in use
  • Includes detailed instruction chart

Additional Info :

Color black
Item Dimensions
Height 4.4488188931
Width 10.25196849348
Length 9.20078739219
Weight 0.0039462744898

3. New Leak Down Tester Tu-21 Engine Cylinder Leak Tester Leakage Detector Engine Compression Tester Gauges Set

Features :

  • FITS YOUR VEHICLE — It is compatible with gasoline 4-stroke engines and 12mm or 14mm spark. As long your vehicle has a standard spark plug socket, this set will work for you.
  • COMPARE CYLINDERS — It best tests cylinder leak down and compression when comparing a suspect cylinder to a known good cylinder on the same engine.
  • EASY TO USE — Remove the Schrader valve and turn the regulator off before applying shop air. Install the hose to the cylinder, the unit to an air supply, calibrate the leak gauge, and connect the unit to the cylinder hose. Diagnosis is made by observing the amount of leakage indicated on the cylinder leakage gauge and listening for leakage at various points of the car system.
  • Designed to detect a variety of common engine faults. including: Worn piston rings, worn valves, cracks in cylinder walls and blown head gaskets.
  • Suitable for use on any petrol engine with 10, 12 or 14mm spark plugs. Tester checks the amount of leakage in an engine cylinder & helps determine the source. Ideal for testing trucks & late model cars where clearance is minimal.

Additional Info :

Item Dimensions
Weight 3.39

4. ZKTOOL 11PC Compression Tester, Automotive Engine Compression Tester Adapter Kit, Engine Cylinder Leak Down Compression Test Motor Pressure Gauge. (All Vehicles).

Features :

  • Function: The cylinder compression tester kit is used to quickly and accurately test the cylinder pressure of gasoline engines. Meter readings can help diagnose the following problems: stuck valve, carbon deposits, cracked cylinder head or defective main gasket, poor or worn piston ring installation, burned or damaged piston.
  • Packing: Including 10 connection adapters — 11-in-1 engine tester gauge kit including 1 piece spring buckle gauge; 5-piece brass adapter M10, M12, M14, M16, M18, widely used; a 200mm metal Extension rod connector, two 50mm metal aluminum rod straight and bent rod, an extension rod hose with M12*1.25 thread.
  • Application: Gasoline engine cylinder — equipped with different sizes of rotating and push-in adapters, widely used in most types of gasoline gasoline gas engine cylinders and deep spark plugs, common in motorcycles, lawn mowers, cars, trucks, ATV and many more. Not suitable for diesel engines.
  • Stable quality tester: Maximum 300PSI or 20BAR dual pressure device, with easy-to-read large dial, acrylic glass meter cover with scratch-resistant coating and rubber protective cover with excellent shock absorption performance. The built-in one-way valve with pressure holding function ensures that the pressure gauge obtains the maximum pressure at the spark plug during the compression process.
  • Service: If there is anything about this product that makes you unsatisfied, we provide warranty, return and exchange service, and the package contains detailed operating instructions.

Additional Info :

Color Blue
Item Dimensions
Height 2.362204722
Width 8.4645669205
Length 13.779527545

5. BTSHUB Cylinder Leak Down Tester Kit Dual Pressure Gauges Tu-21 Gasoline Engine Leakage Detector with 10 12 14mm Spark Plugs

Features :

  • The cylinder leakage test gauge Kit is designed to detect common engine faults including: worn piston rings, worn valves, cracks in cylinder walls and blown head gaskets.
  • Available with either single gauge shows % of cylinder leakage, or twin gauge manifold show cylinder leakage and cylinder pressure. Suitable for any gasoline engine with 14, 12 or 10mm spark plugs.
  • Dual pressure gauges: 1 Cylinder pressure gauge, 1 Cylinder leakage gauge. Features a 19″ long rubber nylon resin hose with quick coupler on the assembly. Rubber cover protected 3″ large dial, the pressure gauge with scale range 0-100psi/0-7bar, and the leakage gauge with color coded range marked with HIGH MODERATE LOW SET.
  • 3 sizes adapters: Brass coated aluminum adapters, 14mm(fixed on a 10″ long hose), aluminum 12mm and 10mm (both can be connected to 14mm adapter), help to test the gasoline engine with 10 12 14mm spark plugs.
  • Ideal for testing trucks & late model cars where clearance is minimal. Please note: This cylinder leak tester is not suitable for shallow cylinder.

Additional Info :

Item Dimensions
Height 3.149606296
Width 3.93700787
Length 7.87401574

6. Mityvac MV5532 Digital Gasoline Engine Compression Test Kit, Memorizes The Peak Compression Value for Each Cylinder, Powered by 9V Battery, Backlit Display in PSI, BAR and kPa

Features :

  • Stores maximum compression value for up to 12 cylinders.
  • Backlit LC display is easy to read from any angle and in any light and displays values in psi, bar and kPa.
  • Uses standard 9V battery for convenience and cost.
  • Automatically shuts off after three minutes of non-use (memory is retained).
  • Rubber boot protects the gauge from bumps and drops. The gauge face is grease and oil-resistant and is sealed to prevent contamination of the electronic components.

Additional Info :

Color Black
Item Dimensions
Height 4
Width 13
Length 16
Weight 1

7. Elitech WJL-6000 Freon Leak Detector Halogen Gas Tester HVAC Refrigerant AC Sniffer R22 R410A R134A

Features :

  • Freon leak detector triggers on R22, R134A, R404a, R410A and all halogenated refrigerants including HFCs, CFCs,HCFCs and blends.
  • Response within 3 seconds; Warm up in 6 seconds.
  • 7 Adjustable Sensitivity; Maximum sensitivity is 0.21oz/yr.
  • Audible and visual gas leakage indicators and dual battery indicator.
  • A flexible probe around 7.9-inch allows detections in difficult and hard-to-reach areas. 24/7 US Technician Support via Email and Phone.

Additional Info :

Color Halogen Sensor WJL-6000
Item Dimensions
Height 5.9
Width 1.37
Length 1.37
Weight 0.45

8. Amazon Basics 6 Pack CR2032 3 Volt Lithium Coin Cell Battery, Long Lasting Power in Child Resistant Packaging

Features :

  • IN THE BOX: 6-Pack of CR2032 lithium coin cell; replacement batteries for small electronic devices
  • DEVICE COMPATIBLE: Ideal for watches, calculators, key fobs, Apple TV remotes, and other small electronics. Replacement for BR2032, DL2032, and ECR2032
  • DESIGNED TO LAST: 8-year leak-free shelf life
  • EASY IDENTIFICATION: Engraved with battery model for easy identification

Additional Info :

Item Dimensions
Height 0.13
Width 0.79
Length 0.79
Weight 0.006
Release Date 2008-09-15T00:00:01Z

9. Cylinder Leak Down Tester,Compression Test kit – Engine Cylinder Dual Gauge Leakdown Tester kit Diagnostics Tool.

Features :

  • Cylinder leak down tester,compression test kit -Engine Cylinder Dual Gauge Leakdown Tester kit Diagnostics Tool.
  • UNIVERSAL FITMENT. Suits all local and imported cars and trucks, ideal for testing trucks and car models where clearance is minimal. check the amount of leakage in 4-stroke engines.
  • Designed to detect a variety of common engine faults such as worn piston rings, cylinder head cracks, worn valves and blown head gaskets. It checks the amount of leakage in an engine cylinder and helps determine the source.
  • PACKAGE CONTENTS: 480mm flexi hose, 12mm and 14mm spark plug adapters, fixed short connector M14 x 26mm, fixed long connector M16 x 26mm, pressure gauge, cylinder leakage gauge, air regulator, instructions, and carrying case.
  • GUARANTEE. We provide our worry-free 24-Hour reply, 30-Day Refund.

Additional Info :

Item Dimensions
Weight 3.08

10. Performance Tool W89729 Leak-Down Test Kit (Not a compression Tester) , black

Features :

  • Pressure regulated manifold and quick couplers
  • 12 millimeter and 14 millimeter thread adapters
  • Helps identify causes of low cylinder compression of internal engine problems such as bad rings valves and leaking head gaskets
  • Blow molded hard case for storage
  • Dual 2-1/2 inch gauges with protective outer shell

Additional Info :

Color black
Item Dimensions
Height 3.4
Width 11.1
Length 15.3
Weight 3.4

Buying Guide for digital leak down tester

To help you buy the perfect digital leak down tester for your needs and requirements, we have mentioned some of the best digital leak down 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 digital leak down tester for buying the perfect one, we are here with a detailed buying guide just for you. Since this buying guide is related to digital leak down tester, you can find many major features and aspects related to digital leak down tester. Thus, you can easily choose the perfect one by going through this article until the end.


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


When choosing the best digital leak down 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 digital leak down 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 digital leak down tester.

Ease of Use

While choosing the digital leak down 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 digital leak down 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 digital leak down 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 digital leak down tester.


The price of your digital leak down 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 digital leak down tester. In this case, you can prepare a list of all the features you want to have in your digital leak down 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 digital leak down 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 digital leak down 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 digital leak down 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 digital leak down tester come with a longer warranty than others, so select one with a long warranty if possible.

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