Best Polarity Tester Reviews & Alternatives

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

Best polarity tester & Features

1. Klein Tools RT210 Outlet Tester, Receptacle Tester for GFCI / Standard North American AC Electrical Outlets, Detects Common Wiring Problems

Features :

  • GFCI Tester detects the most common wiring problems in standard and GFCI receptacles
  • Works on GFCI outlets and confirms operation of the ground fault protective device
  • Built to withstand a 6.6-foot (2m) drop
  • Operating temp: 32-Degree to 140-Degree Fahrenheit (0-Degree to 40-Degree Celsius)
  • Nominal Voltage: 110/125V AC at 50/60Hz in 3-wire outlet

Additional Info :

Color Factory
Item Dimensions
Height 1.5
Width 3.8
Length 5.3
Weight 0.11875

2. AUTUT Automotive Speaker Polarity Tester Phasemeter Tool Plastic Shell Audio Signals Tester

Features :

  • 🚗【PACKAGE】1 x Automotive Speaker Polarity Tester Phasemeter.
  • 🚗【APPLICATION】Suitable for samll treble, door speakers, subwoofer, etc.
  • 🚗【FUNCTION】Check if the positive and negative poles of the speaker are reversed.
  • 🚗【FEATURE】With insulated plastic shell for your safety and comes with a CD for test signal.
  • 🚗【PLEASE PAY ATTENTION】We do not sell the brands metioned above and below, all the known brands we mentioned just for compatibility reference only, please be aware.

3. Schatten Magnet Polarity Tester

Features :

  • Refined by Les Schatten especially for guitar shops, this tester is useful for troubleshooting and testing pickups and wiring
  • By indicating the north or south magnetic orientation of a pickup’s polepieces, this polarity tester can help you avoid incorrectly wiring pickups that are magnetically out of phase
  • If you do a lot of work on guitar pickups and amp electronics, you’ll want this simple and effective tool in your toolbox
  • Instructions included

4. Sperry Instruments GFI6302 GFCI Outlet / Receptacle Tester, Standard 120V AC Outlets, 7 Visual Indication / Wiring Legend, Home & Professional Use, Yellow & Black

Features :

  • DURABLE: Hi-Impact Resistant ABS housing with soft over-molded rubber grips with a compact ergonomic design (GFI6302 and VD6504)
  • QUICKLY READ: Bright color-coded neon lights for easy visual indication (GFI6302)
  • TESTING CAPABILITY: Standard 3-Wire and GFCI protected 120Volt AC Outlets. Frequency (Hertz) 60Hz (GFI6302)
  • GFCI FUNCTION: Tests GFI Outlets and standard outlets that are wired in series with GFCI outlets (multiple outlets in kitchen or bath)
  • RATED: 10 ft Drop and 250 lb Crush, CAT Rating III 300V, C-UL US, CE-Marking and recognized by Occupational Safety Hazards Association (OSHA) as an National Recognized Testing Laboratory (NRTL). 10 ft Drop and 250 lb Crush
  • WARRANTY: Sperry Instruments Backed Limited Lifetime Warranty

Additional Info :

Color Yellow/Black
Item Dimensions
Height 1
Width 3.75
Length 6.75
Weight 0.2

5. RCA All in One 9V Cable Wire Tester Tone Generator Speaker Polarity IBR68

Features :

  • All in One Tester / Tone Generator
  • Easy to use control knobs
  • Speaker tester with 9v
  • RCA cable tester
  • Auto off function

Additional Info :

Item Dimensions
Height 12
Width 4
Length 5

6. NVX Professional Grade Tone Generator and Speaker Polarity Tester

Features :

  • The XTGSP2 is perfect for safely troubleshooting and testing audio systems. Offers an output range of 0-8 volts at a variable 13 to 10,000 Hz tone for setting system levels, checking speaker x-over points, verifying connections, and general troubleshooting.
  • The XTGSP2 also has a 9v speaker popper for visually testing speaker connection polarity. Connections can be made via supplied RCA or alligator clips.
  • It features an auto-shutoff for extended battery life. It is a very small size, making it easy for handheld use, and is also designed with rotary control knobs for easy tone and level adjustments.

Additional Info :

7. General Tools AMY6 Magnetic Tester , Blue

Features :

  • EASY TO USE: Easily determine whether something is magnetic.
  • VISUAL ALERT: Red and green LEDs distinguish North and South (red for “N”, green for “S”)
  • AUDIBLE ALERT: A loud buzzer pinpoints each pole’s location.
  • EASY TO CARRY: Practical pocket clip and pen style makes it easy to carry.
  • POWERED BY: 4 LR44 batteries which are included.
  • GENERAL TOOLS: We have been a recognized leader in the innovation, design, and development of specialized precision tools for many years. We encourage craftspeople, artisans, and DIYers to work smarter, measure better, and increase productivity.

Additional Info :

Color Blue
Item Dimensions
Height 5.63
Width 0.88
Length 0.94
Weight 0.0005

8. Bastex Socket Tester with GFCI check. Receptacle Tester for Standard AC Outlets. Includes 7 Visual Indications and Wiring Legend. Automatic Electric Circuit Polarity Voltage Detector Breaker Finder

Features :

  • GENERAL USAGE: The Bastex socket tester allows electricians, handymen or the DIYer to properly check for correct wiring on US power outlets. The outlet tester is used to verify that the outlet can provide power to a device plugged into it. Also, allows for the check of trip function for GFCI. Colorful and bright Readouts will guarantee the correct diagnosis every time.
  • PRODUCT FEATURES: Made with standard U.S. Sockets in mind. The indicator legend is included on the tester for quick analysis. Includes a clear light up read out to properly diagnose correct or incorrect wiring for receptacles. Made standard for 110- 120V AC Outlets. Frequency (Hertz) 60Hz
  • DURABILITY: Hi-Impact Resistant housing. Made of hardened Durable plastic. Has a compact and ergonomic design with texted side design for grip.
  • INCLUDES: Socket Tester with GFCI test function built in
  • WARRANTY: 30 Day Money Back / 12 Month Replacement Warranty Included

Additional Info :

Item Dimensions
Weight 0.09

9. Klein Tools ET40 Voltage Tester, AC Voltage, DC Voltage, and DC Polarity, Low Voltage Tester Includes Batteries

Features :

  • Voltage Tester for AC voltages from 12V to 240V AC at four useful levels aligned with commonly used residential voltages
  • Tests DC voltages from 1.5V to greater than 17 to 24V at four useful levels aligned with commonly used DC voltages
  • Bright LEDs illuminate to indicate the type and level of voltage detected
  • Built to withstand a 9.8-Foot (3 m) drop
  • Indicates polarity when measuring DC voltages
  • Powers off automatically after approximately 2 minutes of non-use to conserve battery life
  • CATIII 250V, Class 2, Double insulation

Additional Info :

Item Dimensions
Height 1.11
Width 1.52
Length 5.24
Weight 0.14375

10. Car Audio Speaker Phasemeter, Auto Car Audio Speaker Polarity Tester Horn Tester Phase Meter PH Phase Meter

Features :

  • ❥❥❥ 【Widely Used】This audio speaker phasemeter can test all speakers of all cars, such as small tweeters, door speakers, subwoofers, etc.
  • ❥❥❥ 【Product Usage】 The phase meter suitable for safe troubleshooting and testing of audio systems. Effectively used to test the polarity of speakers.
  • ❥❥❥ 【Easy To Test】The CD with the package include 4 section test music. Section 1: left channel noise signal; Section 2: right channel noise signal; Section 3: phase test signal; Section 4: same as section 3.
  • ❥❥❥ 【Easy to Use】The low battery indicator lights up to indicate that the battery is low. 3 green light flash and 1 red light indicates that the speaker output is in positive phase correct connection); 3 red light flash and 1 green light indicates negative phase (reversed connection).
  • ❥❥❥ 【How to Use the Tester 】Put it in car cd player, and play section 1 or 2, check if left/right channel connection is right. Play section 3 or 4, the sound speaker will produce a fixed frequency signal, then press test button.

Additional Info :

Item Dimensions
Height 3.93700787
Width 3.93700787
Length 3.93700787

Buying Guide for polarity tester

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


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


When choosing the best polarity 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 polarity 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 polarity tester.

Ease of Use

While choosing the polarity 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 polarity 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 polarity 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 polarity tester.


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

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