20 Best Circuit Tester [2024]

Are you looking for the best circuit tester? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling circuit tester.

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1 Klein Tools NCVT1P Voltage Tester, Non-Contact Voltage Detector Pen, 50V to 1000V AC, Audible and... Klein Tools NCVT1P Voltage Tester, Non-Contact Voltage Detector Pen, 50V to 1000V AC, Audible and...
2 Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester With Integrated GFCI Outlet Tester Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester With Integrated GFCI Outlet Tester
3 KAIWEETS Voltage Tester/Non-Contact Voltage Tester with Dual Range AC 12V-1000V/48V-1000V, Live/Null... KAIWEETS Voltage Tester/Non-Contact Voltage Tester with Dual Range AC 12V-1000V/48V-1000V,...
4 Klein Tools NCVT2PKIT Non-Contact Voltage Tester with Outlet Tester, 12-48V AC or 48 - 1000V AC Dual... Klein Tools NCVT2PKIT Non-Contact Voltage Tester with Outlet Tester, 12-48V AC or 48 - 1000V AC...
5 Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire... Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard...
6 Klein Tools RT210 Outlet Tester, Receptacle Tester for GFCI / Standard North American AC Electrical... Klein Tools RT210 Outlet Tester, Receptacle Tester for GFCI / Standard North American AC...
7 VENLAB Voltage Tester, Non Contact Voltage Detector, Circuit Tester Dual Range Voltage Sniffer... VENLAB Voltage Tester, Non Contact Voltage Detector, Circuit Tester Dual Range Voltage Sniffer...
8 NSi Industries TES-111 Twin Probe Voltage Tester, 80-250 VAC NSi Industries TES-111 Twin Probe Voltage Tester, 80-250 VAC
9 Heavy Duty 3-48V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire,... Heavy Duty 3-48V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring...
10 E-Tek 48882W Circuit Tester, 6/12V E-Tek 48882W Circuit Tester, 6/12V
11 Klein Tools RT110 Outlet Tester, AC Electrical Receptacle Tester for North American Outlets Klein Tools RT110 Outlet Tester, AC Electrical Receptacle Tester for North American Outlets
12 Premium LED Bulb Automotive Circuit Tester, 6-24V Test Light with 135 Inch PU Extended Spring Wire,... Premium LED Bulb Automotive Circuit Tester, 6-24V Test Light with 135 Inch PU Extended Spring...
13 Heavy Duty Automotive Circuit Tester, Premium 6-24V Test Light with Extended Spring Test Leads &... Heavy Duty Automotive Circuit Tester, Premium 6-24V Test Light with Extended Spring Test Leads &...
14 AWBLIN Automotive Test Light 3-60V DC Digital LED Circuit Tester, Heavy Duty Light Tester with... AWBLIN Automotive Test Light 3-60V DC Digital LED Circuit Tester, Heavy Duty Light Tester with...
15 NSi Industries TES-2 Voltage Tester, 120 or 240 VAC NSi Industries TES-2 Voltage Tester, 120 or 240 VAC
16 AstroAI Multimeter 2000 Counts Digital Multimeter with DC AC Voltmeter and Ohm Volt Amp Tester ;... AstroAI Multimeter 2000 Counts Digital Multimeter with DC AC Voltmeter and Ohm Volt Amp Tester ;...
17 Wire Tracer Electrical Circuit Tracer Tone Generator and Probe Kit,Circuit Breaker Finder Network... Wire Tracer Electrical Circuit Tracer Tone Generator and Probe Kit,Circuit Breaker Finder Network...
18 Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet / Receptacle Tester... Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet / Receptacle Tester...
19 Fluke ST120 GFCI Socket Tester Without Beeper Fluke ST120 GFCI Socket Tester Without Beeper
20 Morris Products Circuit Tester 80-500 Volts AC/DC Economy Twin Lead Tester for Testing Switches,... Morris Products Circuit Tester 80-500 Volts AC/DC Economy Twin Lead Tester for Testing Switches,...
Bestseller No. 1
Klein Tools NCVT1P Voltage Tester, Non-Contact Voltage Detector Pen, 50V to 1000V AC, Audible and...
  • NON-CONTACT DETECTION of AC voltage in cables, cords, circuit breakers, lighting fixtures, switches, non-tamper-resistant outlets, and wires
  • VISUAL AND AUDIBLE INDICATORS of voltage detection with a high intensity, bright red LED, and an audible tone
  • BROAD APPLICATION with a 50 to 1000V AC power detection range
  • CONSERVE BATTERIES with auto power-off function
  • LIGHTWEIGHT AND DURABLE compact design with a convenient clip fits securely in pocket; 6.6-Foot (2 m) drop protection
Bestseller No. 2
Klein Tools ET310 AC Circuit Breaker Finder, Electric Tester With Integrated GFCI Outlet Tester
  • This circuit breaker finder can quickly and accurately locate the correct circuit breaker in a panel corresponding to the circuit to which an...
  • GFCI tester consists of two parts: a Transmitter connected to the electrical outlet or fixture, and a Receiver used to scan the panel to locate the...
  • Receiver delivers clear visual and audible indications when the correct breaker has been located
  • Operates on 90-120V AC circuits
  • Transmitter incorporates a GFCI outlet tester to inspect the wiring condition at the electrical outlet and test GFCI devices
SaleBestseller No. 3
KAIWEETS Voltage Tester/Non-Contact Voltage Tester with Dual Range AC 12V-1000V/48V-1000V, Live/Null...
  • SAFETY FIRST: It will send out multiple alarms through sound and light. When the voltage is detected, the tip will send out red light and beep. When...
  • NON-CONTACT: With NCV inductive probe for AC voltage; Just place the tip near a terminal strip, outlet, or supply cord. When the tip glows red and the...
  • DUAL RANGE: Detects standard and low voltage (12-1000V AC / 48-1000V AC) for more sensitive and flexible measurements. Press the S button to adjust...
  • SECURITY LEVEL: IEC rated CAT III 1000V CAT IV 600V, Meets CE requirements; The electrical tester is safely double insulated. High Voltage Alert to...
  • COMPACT DESIGN: Bright LED flashlight for work in dim ares; Low-Power-Indicator when battery voltage is below 2.5V; Automatic Power Off after 3...
SaleBestseller No. 4
Klein Tools NCVT2PKIT Non-Contact Voltage Tester with Outlet Tester, 12-48V AC or 48 - 1000V AC Dual...
  • Kit contains+B2:H150 a non-contact voltage tester and receptacle tester
  • Dual range NCVT-2P automatically detects and indicates low voltage range and standard voltage (48-1000V AC)
  • NCVT-2P provides non-contact detection of standard voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets and wires
  • NCVT-2P is a lightweight, compact tool with pocket clip for convenient storage and quick access
  • CAT IV 1000 Volt rating provides expanded operation and protection
Bestseller No. 5
Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire...
  • LARGE CLEAR LCD READOUT on receptacle tester to instantly view results without the need to look at a chart to understand results
  • TEST GFCI TRIP TIME IN SECONDS to find out if the trip breaker is functioning
  • DETECT WIRING FAULTS of open ground, open neutral, open hot, dual open (neutral and ground), reversed hot/ground, and reversed hot/neutral
  • AUTO-HOLD FUNCTION is convenient for hard-to-reach outlets
  • SAFE AND DURABLE TESTER for inspections on North American 120V outlets
SaleBestseller No. 6
Klein Tools RT210 Outlet Tester, Receptacle Tester for GFCI / Standard North American AC Electrical...
  • 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)
  • Nomil Voltage: 110/125V AC at 50/60Hz in 3-wire outlet
Bestseller No. 7
VENLAB Voltage Tester, Non Contact Voltage Detector, Circuit Tester Dual Range Voltage Sniffer...
  • 【Non Contact Voltage Test】The no contact live wire tester provides the easiest and safest way of checking for electrical current in a wire,...
  • 【High&Low Sensitivity】Switch sensitivity mode between “High” and “Low” based on your needs at work. “High” for Testing 12V-1000V,...
  • 【Visible&Audible Alarm】The tip glows in red and beeper sounds at high frequency when high voltage is detected while yellow light and low frequency...
  • 【Flashlight&Red Pointing Light】Built-in flashlight brings you convenience when working in dark or encounter power blackout. Red pointing light can...
  • 【Customer Service】 36-month technical support is available on our non contact power tester pen. We encourage you to contact us if there are any...
SaleBestseller No. 8
NSi Industries TES-111 Twin Probe Voltage Tester, 80-250 VAC
  • Neon Light Indicates Presence Of Ac Voltage From 80-250 Vic
  • Double Insulated Housing and Test Leads
  • Pocket Clip
  • Country of origin: United States
SaleBestseller No. 9
Heavy Duty 3-48V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire,...
  • 【Wide testing range】3-48v low DC voltage circuit test light, designed for checking various...
  • 【Computer Safe & Backlight Digital Display Part】Heavy Duty circuit light tester with highly clear LCD digital blue backlight display screen,...
  • 【Quality Made Tester Body】Professional automotive circuit tester with premium acetate fiber body, allows for more toughness and durability. Sharp...
  • 【Extended PU Spring & Large Alligator Clip】High quality 140 inch long enough PU spring wire offers more flexibility, lighter and more durable...
  • 【100% Quality Guarantee】If you are looking for a durable circuit testing tool, this one is for you. We always stand behind our products, click...
Bestseller No. 10
E-Tek 48882W Circuit Tester, 6/12V
  • Tests 6 and 12 Volt systems
  • Probe and ground lead with clip
  • Convenient and cost-effective option
  • A must have for any vehicle repair kit
Bestseller No. 11
Klein Tools RT110 Outlet Tester, AC Electrical Receptacle Tester for North American Outlets
  • Outlet tester's light sequence on receptacle tester indicates correct/incorrect wiring
  • Receptacle tester conforms to UL Std 1436, Certified to CSA Std C22.2 #160
  • Operating temp: 32-degrees F to 140-degrees F (0-degrees C to 40-degrees C)
  • Built to withstand a 6.6-foot (2m) drop
  • Nominal Voltage: 110/125V AC at 50/60Hz in 3-wire outlet
Bestseller No. 12
Premium LED Bulb Automotive Circuit Tester, 6-24V Test Light with 135 Inch PU Extended Spring Wire,...
  • [Wide Application], professional automotive circuit tester/circuit test light with 6-24V DC voltage testing range, ideal for checking various vehicles...
  • [Quality LED Bulb], high visibility and strictly tested long service life LED test light bulb to indicate circuits’ signal, the brightness of the...
  • [Bidirectional Current Voltage Testing], you can attach the alligator clamp either to negative or positive ground, while use the probe to touch the...
  • [Quality Made], sharp stainless steel probe for piercing wires, also for hard to reach tight areas. Insulation protective rubber tip protects you...
  • [Convenient Use], High quality 135 inch long enough PU spring wire offers more flexibility, lighter and more durable than normal cable wires,...
SaleBestseller No. 13
Heavy Duty Automotive Circuit Tester, Premium 6-24V Test Light with Extended Spring Test Leads &...
  • Heavy Duty Construction, large size tester body made with high quality ABS, heavy duty, shatter-proof, durable than normal test light.
  • 6-24v Widely Use Circuit Tester,designed to check vehicles electrical circuits, automotive battery, circuit integrity and other 6-24 volt wiring and...
  • Made with sharp super hard steel probe for piercing wires, also for hard to reach areas.
  • Portable 135 inch long enough PU spring wire cord and large size alligator clip for easy and one hand operation.
  • Strictly tested long service life test light bulb, including 1 pcs replacement conductive spring& bulb set to make it serve you faithfully for years....
SaleBestseller No. 14
AWBLIN Automotive Test Light 3-60V DC Digital LED Circuit Tester, Heavy Duty Light Tester with...
  • [UNIQUE DESIGN- ANTI-LOST NEEDLE GUARD PROTECTION]: Adopt the integrated structure design of the probe protection cover, needle guard function is...
  • [LED INDICATION, BIDIRECTIONAL VOLTAGE TESTING]: This upgrade circuit test light is a bidirectional voltage tester. You can attach the alligator clamp...
  • [WIDER VOLTAGE RANGE] Compared with the auto electrical tester on the market, the maximum voltage measured is only 48V, but the maximum voltage that...
  • [COMPUTER SAFE, DURABLE & FLEXIBLE]: The professional auto circuit tester has a built-in circuit board chip, which is safer and more durable than...
  • [100% SATISFACTION]: If you have any dissatisfaction for any reason, please feel free to let us know and we will do our best to assist you.
SaleBestseller No. 15
NSi Industries TES-2 Voltage Tester, 120 or 240 VAC
  • Dual Neon Light Indicates Presence Of Ac Voltage Of Either 120 Or 240 Vic
  • Double Insulated Housing and Test Leads
  • Pocket Clip
  • Country of origin: United States
SaleBestseller No. 16
AstroAI Multimeter 2000 Counts Digital Multimeter with DC AC Voltmeter and Ohm Volt Amp Tester ;...
  • VERSATILE DIGITAL MULTIMETER - Accurately measures AC/DC Voltage, DC Current, Resistance, and Diode. This Multimeter is a really useful tool for...
  • TROUBLESHOOTING WITH Accuracy - This Multimeter has a sampling speed of 2 times per second; Built-in a backlight LCD display with 3 ½ digits (1999...
  • ENSURES SAFETY - Double ceramic fuse is anti-burn and protects from overloading.The silicone cover is able to protect the multimeter from failing...
  • EASE OF USE - Support Data Hold, low battery indicator and continuity buzzer. Includes Convenient feature like LCD Backlit Screen makes it easy to use...
  • ADDITIONAL TIPS - This Multimeter is designed to troubleshoot a variety of automotive and household electrical problems safely and accurately....
SaleBestseller No. 17
Wire Tracer Electrical Circuit Tracer Tone Generator and Probe Kit,Circuit Breaker Finder Network...
  • ♻Quick & Accurate Network Cable Collation: The cable tracer can search for wires in various applications, including buried wires, single stranded...
  • 🔰Flexible Tone Generator Wire Tracer: The wire toner tracer receiver is equipped with an adjustable sensitivity dial, which allows you to...
  • 📟Short & Open Finder Circuit Tester: In CONT mode, you can check the short circuit and open circuit in the line. The attached RJ11 connector allows...
  • 🔋Tone Tracing Probe Kit: In TONE mode, you can quickly track cables passing through ceilings, under floors, interior wall barriers, etc., without...
  • 💌No Risk : Our wire tester electrical tool has One-year Warranty! And, we are always put our customers in the first place and aiming to provide our...
Bestseller No. 18
Sperry Instruments STK001 Non-Contact Voltage Tester (VD6504) & GFCI Outlet / Receptacle Tester...
  • VERIFIES VOLTAGE PRESENSE: Verifies the presence of AC Voltage prior to working on electrical installation or troubleshooting (GFI6302 and VD6504)
  • 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)
  • CIRCUIT SENSING: Non-Contact sensitivity detects 50-1000V AC and patented battery self-test feature (VD6504)
  • AUDIBLE AND VISIBLE INDICATOR: 360° visual and beeping audio Non-Contact Voltage Detection (VD6504)
Bestseller No. 19
Fluke ST120 GFCI Socket Tester Without Beeper
  • Integrated GFCI test button to verify the correct operation of GFCI equipped outlets
  • Bright LEDs for fast, easy identification of miswired outlets
  • Compact, rugged design for use at every job
  • Eliminate multiple trips back and forth by using the beeper to help identify if breaker is switched on or off
Bestseller No. 20
Morris Products Circuit Tester 80-500 Volts AC/DC Economy Twin Lead Tester for Testing Switches,...
  • ULTIMATE ELECTRICIAN’S TOOL: Every electrician needs this circuit tester from Morris Products in his or her toolbox. The economy twin lead tester is...
  • TESTING SOLUTION: Ensure that switches, outlets and electrical devices are working with this Morris Products’ circuit tester on hand.
  • 500 VOLTS MAX: Each AC/DC circuit tester offers 80 to 500 volts, so you can maximize your electrical testing and work on residential or commercial...
  • CULUS LISTED: Know that you’re investing in high-quality equipment for electric work with this cULus listed circuit tester.
  • COLLECTION OF COMPREHENSIVE ELECTRICAL TOOLS: Morris Products is proud to feature a variety of electrical tools and applications that range from wire...

Having trouble finding a great circuit tester?

This problem is well understood by us because we have gone through the entire circuit tester research process ourselves, which is why we have put together a comprehensive list of the best circuit testers available in the market today.

After hours of searching and using all the models on the market, we have found the best circuit tester for 2023. See our ranking below!

How Do You Buy The Best Circuit Tester?

Do you get stressed out thinking about shopping for a great circuit tester? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching circuit tester, which is why we have assembled a comprehensive list of the greatest circuit tester available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for circuit tester that you consider buying. Your questions might include the following:

  • Is it worth buying an circuit tester?
  • What benefits are there with buying an circuit tester?
  • What factors deserve consideration when shopping for an effective circuit tester?
  • Why is it crucial to invest in any circuit tester, much less the best one?
  • Which circuit tester are good in the current market?
  • Where can you find information like this about circuit tester?

We’re convinced that you likely have far more questions than just these regarding circuit tester, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for circuit tester, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible circuit tester. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an circuit tester buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available circuit tester currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of circuit tester has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an circuit tester?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your circuit tester.
  5. Customer Ratings: Number ratings grade circuit tester objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their circuit tester.
  7. Product Quality: You don’t always get what you pay for with an circuit tester, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an circuit tester is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining circuit tester information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding circuit tester is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: What is the best circuit breaker finder?

A: The Amprobe is an excellent circuit breaker finder that works perfectly at home and at work. However, this is best for finding live outlets rather than one that doesn’t have a signal. This is because it needs to be plugged into the breaker’s outlet.

Q: What is an electrical circuit tester?

A: A circuit tester is a device which is plugged into an electrical socket to make sure it is wired properly. A circuit tester has a series of lights that show the state of the wiring in the outlet, so the technician can verify that it has been installed properly. A circuit tester is also known as a receptacle tester or outlet tester.

Q: What is a circuit breaker tester?

A: The tester indicates the presence of a circuit breaker with a buzzer and an indicator light. The tester includes a transmitter, which is plugged into an electrical outlet, and a receiver, which is powered by a 9V battery. It is compatible with standard 90 to 280V AC and 40 to 70Hz breaker systems.

Q: What is a fuse tester?

A: A fuse tester is a cheap tool, easy to use, and specifically designed for this purpose. To check the status of a fuse with a tester, simply place the fuse in the device. If the fuse is bad, the tester won’t light up. You can also obtain a multimeter.