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The Best Non Contact Voltage Testers

Written by Edwin Jones / Fact checked by Andrew Wright

best non contact voltage tester

A non contact voltage tester is a piece of tech that can make the work of an electrician easier and effortless. This device provides a quick, reliable yet safe way of identifying whether an electric connection is carrying any electric current. Hence, I recommend this product for workers in constant exposure of live wires.

From configuring electrical sockets, outlets to lighting connections, and even doorbells, this device got your back. To truly elevate the quality of your work and projects, I suggest that you get the best non contact voltage tester in the market.

To help you find the proper voltage tester pen, I’ve listed some of the best and most reliable non contact electrical tester products that I’ve worked with in the past.


<strong>Top 1</strong>

Klein Tools NCVT-2


Power Source 12-1000V
Safety Compliance CAT IV 1000V
Weight 23 grams

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<strong>Top 2</strong>

Fluke MQ-167


Power Source 90-1000V
Safety Compliance CAT IV 1000V
Weight 59 grams

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<strong>Top 3</strong>

Neoteck ‎TL163-US


Power Source 12-1000V
Safety Compliance CAT III 600V
Weight 65 grams

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Best Non Contact Voltage Tester Reviews

1. Klein Tools NCVT-2 Voltage Tester

This voltage detector pen is an absolute commendable product for electricians looking to add a klein non contact voltage tester to their work arsenal. I evidently hold this tester in high esteem. Though not a Klein NCVT 3, this is still a nice product to have around.

I like that you can alternate between the two power detection modes that this product features. You can reliably check either low voltage connections (12V – 48V) or standard electrical loads (48V – 1000V) without any misreadings. This feature makes it so that you can use this tester in multiple electrical applications without the need to switch tools.

The voltage tester is also rated at CAT IV 1000 Volt, able to test the integrity of electrical circuit connections accurately without failure. This certification essentially means that the tester can reliably perform expanded connection testings efficiently.

Moreover, I also love how durable this product feels. The product is made with high-quality polycarbonate plastic resin that ensures the sturdiness of the voltage tester’s build. Plus, this Klein Tools product comes designed with a pocket clip, allowing electricians to lug this tester everywhere they go safely.

Another feature that I would like to point out is the product’s bright LED. The display brightly shows whether the voltage tester is functional for usage. The LED also aids in providing illumination, helping you see whatever you’re testing even at night time.

My only pet peeve is the device’s extreme sensitivity, which can yield false positives. As the device doesn’t come with any sensitivity setting, you’d have to pay close attention to the connections you’re testing. Nevertheless, this is still a great product that gets the job done.
  • Users can alternate between two power testing settings
  • Rated CAT IV 1000 Volt, ensuring quality
  • Made with durable materials
  • A pocket clip
  • Features a bright LED indicator that indicates functionality
  • Can illuminate dark workplaces
  • Too sensitive in detecting electricity
If you’re looking for a product that’s easy to use, then avail yourself of this voltage tester.

2. Fluke 1AC-A1-II Non-Contact Voltage Tester

I stumbled upon this product while scouring for a reliable voltage pen tester. I was immediately impressed with this fluke non contact voltage tester, as it comes with several features that could help make your wiring tasks easier. Don’t hesitate to buy this product if you’re looking for a great tool addition to your shed.

One of the main things that hooked me into buying this tester was the integrated Voltbeat technology in the product. This feature allows the voltage tester to perform continual self tests to let you know it’s ready for use.

I like how the tool gives feedback when it detects electricity on the connections being probed. The device tip quickly lights up and creates beep noises, signaling that there is an electric current running through the connection. Nevertheless, if you want to work in peace, you can turn off the beep signal on the tester’s configuration.

Aside from that, I also love the expansive detection range of this voltalert non contact voltage tester. Ranging from 90 V to 1000V, this tool can probe connections freely and diversely without any drawback in testing quality.

The voltage tester comes with included batteries, so you won’t have to buy them separately. Likewise, the manufacturer provides the tester with a two-year warranty, a testament to their quality post-sales service.

Though I have to say, changing the tester’s batteries is difficult. I had to use a plier on the latch of the device because my finger wasn’t strong enough.
  • The integrated Voltbeat technology notifies you of the device’s status
  • Made with an excellent feedback mechanism
  • Features an expansive electrical testing and detection range
  • It already comes with batteries
  • Manufacturer provides buyers with a two-year warranty
  • Changing the device’s batteries may be difficult
I recommend this product as its signal identification capabilities make it an accurate voltage tester for assessing the quality of electrical connections.

3. Neoteck Voltage Detector Pen

Yet another volt tester pen I recommend for electrical connection configurations is Neoteck’s product.

I love how manageable and easy this voltage tester is to use. I didn’t have any difficulty handling this voltage detector, thanks to the product’s convenient outline. It’s designed simply enough that you can carry it everywhere. The pencil-like silhouette makes it so that you can even place it in your pocket.

Another feature that I like about this voltage tester is the installed LED display that doubles as a flashlight. The lighting feature makes it so that you can illuminate your workplace, making it easier to see and configure.

Additionally, you can use this electrical tester pen in various ways, as it’s compatible with multiple electrical systems. For instance, electricians can use this voltage detector on outlets, circuit breakers, light switches, and wires. So if you require a universal tester, I recommend that you check this product out.

The voltage tester also lights up automatically once it detects electrical pulses coursing through wires, making it easier to find working and faulty cable connections. Likewise, the device also produces a “buzz” sound once it’s near electrical signals.

On a more technical aspect, the product has a voltage sensitivity range between 12V – 1000V, covering a vast expanse of the common voltage range of standard electrical systems.

Nonetheless, my issue with this voltage detector is that it drains battery energy when left unused for months. I recommend that you remove the device’s batteries after your projects to prevent the depletion of its battery cells.
  • It doesn’t feel difficult to handle
  • It comes with an LED display that can illuminate workplaces
  • Compatible with a variety of uses
  • Automatically lights up and buzzes when it detects electricity
  • Competently covers the wide voltage range of standard electrical systems
  • Drains battery when left unused
Whether it be for personal household or workplace industrial usage, this voltage tester has your back. Avail of this tool if you need a tester that can make your job much more efficient and easier.

4. eOUTIL AC Voltage Detector Pen

Ensure that your electrical set-ups are in excellent condition with this quality non-contact voltage checking device. I like that this voltage tester can consistently provide an accurate electrical reading of my outlets.

This high-quality tester is certified with a safety compliance rating of CAT IV, the highest level of tool safety category. Aside from that, the voltage tester also fulfills ETL and national safety standards. The high ratings are a testament to the merit of the quality and safety standards of the device.

Moreover, the build of the device is astoundingly polished. The product is made with a durable and quality ABS material, securing the device from environmental damages. It’s also built with a pencil hook that aptly clips the device to your belt for easy access.

The sensor tip of the pen tester can quickly detect electricity flowing in wires. The device displays the test’s result by displaying red flashing lights together with a buzzer alarm that quickly notifies the user.

Likewise, the product can accurately detect electric voltage along the range of 60V to 1000V. Precisely determine how much electricity’s flowing through your outlets, sockets, and wires with this efficient and easy to handle tester.

Lastly, I like that the product manufacturer included a bright flashlight at the tip of the tester. This feature allows me to work even in dark project areas.

My only problem with the tester is the lack of batteries in the package. Nevertheless, it’s just a minor qualm compared to the excellent qualities presented by the device.
  • Complies with safety standards
  • The product’s built with excellent materials
  • Comes with a pencil hook and light and sound notifications
  • The tip of the device can quickly sense electric pulses
  • Can detect a wide range of electric voltage
  • The flashlight feature substantially illuminates dark workplaces
  • The package doesn’t come with batteries
All things considered, I highly recommend this product for electricians who want to have a reliable piece of tech that can make their jobs easier.

5. Sperry Instruments STK001 Non-Contact Voltage Tester

I’ve used this electric current tester device on my previous project. And I have to say, this is a straightforward tool that you’d want to have while on the field.

Right off the bat, I’d have to say that this is the best tester along with its price range. Despite being affordable, Sperry Instrument’s electrical tester is made with high-quality materials. The build of the device is made to withstand any damages from constant usage. In particular, tough ABS housing and rubber grips protect the body of the tester.

Moreover, ensure your safety when working with cables by testing them first with this product. The voltage tester analyzes first whether a wire or outlet carries current.

In like manner, the voltage sensor can accurately determine the exact amount of electricity running through connections. The tester’s probe tip automatically performs contact-free tests, which can precisely measure AC voltage between 50V and 1000V.

Once the device’s finished testing, it then aptly displays the result visually and audibly. The lights and beeping noise the tool creates in the presence of electricity informs users, allowing them to take precautions in what they’re about to do.

Ultimately, the voltage sensor complies with notable safety ratings. For instance, the tool’s classified at CAT Rating III for 1000V and CAT Rating IV for 600V. Moreover, the device’s build is guaranteed to withstand 10 ft. drops and pressures up to 250 lbs.

However, I noticed that the lights of the result panel are a little dim. Aside from this issue, I still highly recommend this product for heavy field usage.
  • Doesn’t break the bank
  • Made with tough and durable materials
  • Allows electricians to work safely with electric wires
  • Precisely determines the amount of electricity running through connections
  • The feedback mechanism of the product alerts users of the presence of electricity
  • Complies with standard safety ratings
  • The display lights of the tester are a little bit dim
This product is a reasonably-priced voltage tester that can capably perform all the tasks that electricians need when working with cables.

6. Southwire Advanced AC Non Contact Voltage Tester

Quickly test whether there is current running through outlets, electrical cords, and connections with this handheld electric current detector.

Ensure that the project you’re about to work on is safe by using this voltage tester. The sensitive tip of this product can easily help you check if there’s live voltage being conducted through the line. Just run the voltage tester’s delicate detector tip through the electrical system to determine if it’s a live or null wire.

Users are provided with modes of voltage detection: low and standard voltage range. The detection range of the low voltage setting can precisely level 12V – 1000V. Moreover, the standard detection range of the product is rated to be around 100V – 1000V.

Additionally, the tester’s flash and beep indicator provide feedback for people checking outlets and electric wires. The closer the tester gets to the voltage source, the faster the device’s flashing and beeping become. I love this feature as it helps users pinpoint the general direction of the power source in relation to the cord.

The device also features a front and rear-facing flashlight, helping electricians work through the night by illuminating the adjacent area. I recommend this product for people who often find themselves working in dark places.

Aside from that, the tester is wholly IP67 Rated, meaning that the product is resistant to water and dust, elements that could hamper the voltage tester’s reliability. The housing of the product is also made with rough and durable materials.

My only concern with the product is that it tends to drain batteries faster than its counterparts. Nevertheless, to remedy this, take the battery cells out of the device when it’s left idly.
  • Easily checks voltage in wires
  • Has two modes of voltage detection range
  • It comes with an excellent feedback system
  • Installed with a multi-directional flashlight
  • Rated IP67 and made with durable materials
  • The device drains batteries fast
All in all, I wholly recommend this product for electricians who want to make their work easier.

7. Klein Tools NCVT-4IR Voltage Tester

If you’re unsure whether there’s a current running through an electric circuit, I recommend that you use this Klein non-contact voltage tester (NCVT) before proceeding. My colleagues who work on air control systems hold this voltage checker in high regard.

This is the perfect NCVT for electricians who often find themselves working with heating, ventilation, and air conditioning (HVAC) systems. The product is specifically made to deal with the intricate electrical connections of HVAC, allowing for further efficient work with ventilation networks.

Moreover, the product’s voltage detection range is rated to be around 12 V – 1000V, expansive enough to cover the standard voltage coursing through electrical systems. Notably, this ac non-contact voltage detector comes with two signal mechanisms –visual and audio indicators — to inform users that the product has detected electricity.

The LCD of the product also piqued my interest. With its 0.1-degree screen resolution, you can clearly see and discern the figures and numbers outlined by the voltage tester.

Aside from that, the tester also boasts a unique infrared temperature detector. Through laser spotting, the voltage detector can determine the ambient temperature of objects, wires, and electrical components.

To top it all off, the tester is certified CAT IV 1000V, which means that the product adheres to the highest level of standard and safety quality set by accreditation organizations.

My only minor issue with the product is its fragile pocket clip. Nevertheless, this is just a slight concern for me.
  • Made to deal with HVAC systems
  • Measured to handle a voltage detection range from 12V to 1000V
  • With audio indicators
  • The discernible LCD allows for easy viewing
  • Uniquely comes with an infrared temperature detector
  • Certified to be CAT IV 1000V
  • The pocket clip is fragile
All things considered, I’m recommending this best non contact voltage tester to everyone looking for a reputable tool that can perform its task diligently.

8. Auroland Non-Contact AC Circuit Tester Tool

This prestigious NCV tester run by 2 AAA batteries is yet another product held in high regard by my colleagues. I’ve heard of this product while scouring for a potential voltage tester that I could add to my collection.

First off, I love the unique battery life indicator in the product. This feature helps me avoid unnecessary hassle when I accidentally run out of battery when working. I highly recommend this product for electricians always on the job from this feature alone.

Aside from that, the voltage tester also comes with an adjustable sensitivity setting. Depending on the task, you can set the detector’s sensitivity according to what needs to be done. It comes with nine “gears,” with specific voltage parameters for particular tests.

Additionally, the device’s alarm indicator also variably adjusts depending on how close the pen voltage detector is to the voltage source. Aside from providing audial cues, the tool also comes with a flashing light.

This tester model also comes with an auto power off feature that automatically saves the device’s battery life. Once the NCVT detects that no action or operation has been conducted for the last three minutes, the tester automatically shuts down.

And before I forget, I love how manageable this device is. You can easily use this product without experiencing hand fatigue, thanks to its excellent silhouette.

However, I don’t particularly appreciate how the manufacturer placed the power button on the device. The placement is awkwardly-positioned, resulting in me sometimes accidentally turning off the tester when I’m using it. Nevertheless, it’s just my minor qualm with the product.
  • It comes with a unique battery status indicator
  • Users can customize the sensitivity of the detector tip
  • Sound and light indicators
  • The device automatically turns off when not used for a certain amount of time
  • Does not cause hand discomfort
  • The power button of the device is oddly-placed
Considering all of these, I’m confident that this is a candidate for the best non contact voltage detector available in the market.

9. Gardner Bender Circuit Non-Contact Voltage Tester

My job tracking wires and detecting voltage running through cables became more manageable when I tried out this AAA battery AC voltage tester. Aside from my colleagues’ praises, the non contact voltage tester reviews also reflect the contentment of the product’s buyers.

I recommend this premium product primarily because of its excellent functionality. You can test whether there’s voltage running through outlets, wires, and entire electrical systems with just a simple touch of this device. You can reliably use this product to check if the connection you’re about to work on carries electricity.

The product can also precisely test voltages between 50V and 600V. A straightforward tool for determining live wires, this device is an excellent addition for electricians who need a basic NCVT.

The device comes with an audible and visual indicator that fires up when it detects electrical impulses. A loud continuous beeping noise and a 360° red light inform users whether a live wire has been discovered.

Don’t let the product’s simple design deceive you. The voltage tester is rated compliant with CAT III 600V, a testament to its quality. What’s more, the device can withstand pressures up to 150 lbs., indeed proving that the NCVT’s built with quality materials.

Aside from that, the device also comes with a one-year warranty. The manufacturer assures its buyers an excellent post-sales service for devices with defects and hardware issues.

However, my only qualm is the product’s lack of colorways. The device’s only available color is red. Likewise, I noticed that you also can’t change the color of the 360° light — which I hoped I could change to blue light instead.
  • A simple touch of this device can reliably determine if there’s electricity
  • Capable of testing between 50V and 600V of electricity
  • The signal indicators perfectly function as designed
  • Rated CAT III 600V with a 150-lb weight endurance
  • It comes with a one-year warranty
  • Not available in other colors, both the design and the light
In short, this product is a great tester that can help electrical projects be more straightforward and manageable.

10. Epsilont Non-Contact Voltage Tester Pen

A mainstay low voltage tester in my work bag, the amount of detail and features that comes with this product is something I appreciate.

This voltage tester can efficiently, accurately, and reliably detect the presence of electricity without the need to splice open connections. Moreover, the device can also determine the strength of voltage in three different classifications, namely: low, moderate, and strong.

Additionally, users can also tweak the detection range of the device. Coming with two detection settings, this tester is customizable according to what needs to be done. I can set the detection setting to either low (12V – 48V) or standard (48V – 1000V) voltage freely.

This non contact voltage tester is also efficient in battery consumption. The voltage tester features an auto off function that determines whether the device has been used for the past few minutes. If not, then the device powers off on its own.

Lastly, I also like how ergonomically sound this product is when held. I didn’t get any hand cramps or any fatigue while I was using this product in my work.

The only issue I recorded throughout my use is that it sometimes is too sensitive. The device is not the best choice for cables that are very close in proximity.
  • Can detect the power of electricity in three distinct categories
  • Users can switch the detection range of the product
  • Efficient in terms of consuming battery power
  • It can be easily held and managed without issues
  • Not ideal for cables that are close
All in all, this is a durable voltage tester capable of performing multiple functions. This device is chiefly among the better products available in the current market.

11. TACKLIFE VT02 Non-Contact AC Voltage Tester

Tacklife’s non contact tester is the best testing tool that I’ve worked with throughout my collective experience as an electrician in the UK. I stumbled upon this product while working on a household electrical project, and must I say, this is a reliable voltage detector that can help you in your wiring and outlet tasks.

I primarily love the auto-off feature that this voltage tester boasts. This device automatically turns off when not performing any tests or operations within the last three minutes, helping you conserve the device’s battery, prolonging its operating capacity.

I also like how you can safely use this non contact voltage meter without any fear of accidental electrocution. This tester is well-insulated, ensuring users safety in usage. Furthermore, this voltage tool can intelligently detect whether the wire you’re checking is a live or null wire.

Additionally, this voltage tester comes with a high-quality LCD screen that aptly displays whether the cord it’s probing is conducting electricity. This product quickly shows the connection’s voltage intensity, allowing you to determine whether it’s a faulty electrical link.

Users can also set the voltage tester’s sensitivity manually. So if you want a flexible testing tool that you can tailor to your electrical repair and diagnostic needs, then you may want to check this product out. Moreover, you can also set the testing range of this voltage tester, allowing you to calibrate the electric meter accordingly to your task.

However, my only qualm with this product is its poorly-written English instruction. The instructional material is awkwardly-phrased, and with grammatical errors.
  • Features an auto-off system
  • Well-insulated, preventing accidental electrocution
  • Designed with an intelligent system capable of differentiating live and null wires
  • Comes with a bright LCD display
  • Allows users to manually set electricity sensitivity and testing range
  • The product’s manual is poorly-written
All in all, if you need a dependable voltage tester wand that’s affordable, then consider adding this product to your check-out basket.

12. Meterk Non-Contact Voltage Tester Pen

Make your electrical servicing projects easier with Meterk’s non-contact ac voltage detector.

To start, this voltage tester features a dual-range testing capability, able to alternate and adjust according to the user’s needs. I love that you can switch between a low voltage (12V to 1000V) and a standard voltage (48V to 1000V) range mode. This feature makes it possible to fine-tune and calibrate the device depending on the project type.

Using this pen tester is also basic and straightforward. You can run this tester without the need to splice and cut open electrical wires. This voltage tester can determine electrical pulses by just touching electrical outlets and wires. Thus, I recommend checking this product out if you need a tester to conduct assessments efficiently.

Additionally, this product boasts commendable feedback mechanisms. In particular, visual and audio signal features indicate the presence — or the lack thereof — of electrical signals. The device also features a battery indicator that determines the voltage level of the tester.

Lastly, I like how comfortable the device’s silhouette is. The outline is easy to handle, preventing the onset of hand fatigue. The portable hook design makes it so that you can hang and dangle the device on your belt or lanyard.

However, I noticed that this voltage tester sometimes takes 3 – 5 seconds to register the result of the voltage reading of electrical systems. Nonetheless, I still hold this product in high regard as it still gets the job done accurately.
  • Provides users with dual-range testing capabilities
  • An efficient and straightforward tool that’s easy to use
  • Features visual and audio feedback mechanisms
  • Comes with a battery level indicator
  • The sleek design of the product prevents hand fatigue
  • A portable hook for hanging
  • The result of the electrical tests takes some time to register
All things considered, this device is an effective tester that can conduct rudimentary analyses of electrical connections.

What to Look for When Buying Non Contact Voltage Testers


I’ve listed some critical factors that you must take into consideration before shopping for a non contact voltage tester. What I’ve outlined are essential aspects that make an excellent voltage tester. Carefully note them accordingly.

Voltage Range Detection

I recommend that the voltage detector you get can quickly switch into two distinct detection modes, namely: high voltage alternating current (along with the range of 48 V to 1000V) and low voltage AC (12v to 48V). The reason why I suggest that you get a tester capable of dual-range testing is so that you can use the device in a plethora of ways.


Yet another component that you must heed carefully. The non contact voltage detector you’ll buy must be sorted into official measurement categories of safety organizations — in particular, from CAT I to CAT IV, with the latter being regarded as the highest safety tool classification.

Moreover, take note of the AC voltage directly after the CAT classification. The specific number outlined states the maximum voltage rating the tester can safely check.

If you’re in doubt, you can send a mail to classification agencies from your personal email address to determine whether a product’s accreditation is genuine.


I highly suggest that you get a device with an adjustable sensitivity setting that you can tweak according to your use. This feature prevents you from accidentally picking-up electric signals that may tamper with your test result.


A functional outlet tester is one that comes with a plethora of features such as a LED flashlight, laser pointer, battery check function, and voltage signal indicators. A rule of thumb that I religiously adhere to is “the more features a product has, the more functional it is.” Thus, I always strive to find an outlet tester that offers the most features.


If you want a device that you can handle and manage easily, then get a voltage tester that’s ergonomically designed with consideration to handling comfort. A well-designed device will not cause any sort of hand fatigue when used extensively.

Size also comes into consideration. I recommend that you buy one that’s designed compactly, so you can portably carry the device around everywhere.

Additionally, you may want to get a non contact voltage tester that comes with a hook so that you can even place it in your shirt pocket.

We also have a list of the most favorite circuit breaker finder for your reference. Furthermore, take a look at our most affordable electrical circuit tracer if you like.

What are the Different Types of Non Contact Voltage Testers


Given the diversity of products under the non contact voltage tester category, you may expect that there are different types of NCVTs — you may even imagine that there’s a non contact dc voltage detector, non contact dc voltage tester, or just a regular direct current tester in the market. However, that’s not the case here.

Generally, there are two types of non contact live wire testers: an inductively coupled voltage sensor and a capacitive coupled sensor. Basically, these two different voltage sensors vary in how they detect current. Head on to Reddit to learn more about the difference between the sensors.

How Do I Know If the Tester is Functioning

You’ll know that a tester is functioning if the device’s led bar graph or led light properly lights up near a live electrical path, cables or outlets. The presence of a magnetic field aptly triggers the device’s sensors, letting you know if the wire you’re about to touch currently carries voltage energy.

Are Non-Contact Voltage Testers Safe

Yes! NCVTs (Non Contact Voltage Testers) are safe to use. They’re devices specifically made to quickly determine whether a current is running through wires without the need to splice them open. As such, they’re safely insulated from electricity. You can check out some brands of non contact voltage tester Amazon offers to find one that’s right for your use.

Is a Voltage Tester the Same as a Multimeter

No, non contact voltage testers are different from multimeters. In essence, non contact voltage testers can only determine the voltage of electrical devices without requiring you to touch them, hence the name. Meanwhile, multimeters are much more complicated, as they can evaluate and give-off precise readings of AC and DC voltage, electrical capacitance, continuity, frequency, and resistance.


A non contact voltage tester is an important piece of tool that you must have by your side if you’re working on wiring projects. This type of voltage tester allows you to test for electricity voltage without the need to open and splice wires. In fact, just the mere presence of an electric field sets this kind of tester off.

If you want your work to be manageable, productive, and practical, then I recommend that you buy the best non contact voltage tester for your specific use. Trust me, having a reliable piece of tech can save you from heaps of trouble and hassle when working around cables, outlets, and other electric systems.

5/5 - (4 votes)