best non contact voltage tester

Best Non Contact Voltage Tester: Top 6 Voltage Detector Pens of 2024 Reviewed

Last updated on February 28th, 2024.

Are you looking for a non-contact voltage tester?

Voltage testers are essential tools to have on hand when working with electricity. They come in many shapes and sizes, but the best ones will give you both visual and audible feedback when they detect power at your desired range. This will save you time in determining if there really is any power going through those wires or not.

Conversely, a bad voltage tester is a complete waste of time and money.

So to help you separate the good from the junk—we’ve reviewed the Top 6 Non-Contact Voltage Detectors of 2024.

Buy with the confidence that you’re getting one of the best voltage detector pens available. Let’s dive straight into the reviews.

Preview Product Key Features
Klein Tools NCVT-2 Voltage Tester, Non-Contact Dual Range Voltage Tester Pen for Standard and Low... Klein Tools NCVT-2 Voltage Tester, Non-Contact Dual Range Voltage Tester Pen for Standard and Low...
  • Voltage Tester automatically detects and indicates low voltage (12-48V AC) and standard voltage (48-1000V AC) allowing broad application
  • Non-contact detection of standard voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets and wires
  • Non-contact detection of low voltage in security, entertainment, communications, environmental control, and irrigation systems
Fluke 1AC II VoltAlert Non-Contact Voltage Tester, Pocket-Sized, 90-1000V AC, Audible Beeper, 2 Year... Fluke 1AC II VoltAlert Non-Contact Voltage Tester, Pocket-Sized, 90-1000V AC, Audible Beeper, 2...
  • Be aware of voltage easily - the tip glows red and a beeper sounds when voltage is detected
  • Continuous self-test so you always know it’s working
  • Voltage detection range for wide application use - 90 V to 1000 V AC or 200 V to 1000 V AC
Sperry Instruments VD6505 Adjustable Non-Contact Voltage Sensor, 12-1000 V AC Sperry Instruments VD6505 Adjustable Non-Contact Voltage Sensor, 12-1000 V AC
  • DURABLE: Hi-Impact Resistant ABS housing with soft over-molded rubber grips with a compact ergonomic design
  • CIRCUIT SENSING: Adjustable Non-Contact sensitivity detects 12-1000V AC and patented battery self-test feature
  • AUDIBLE AND VISIBLE INDICATOR: 360° visual and beeping audio Non-Contact Voltage Detection
Greenlee GT-12A Non-Contact Voltage Detector Greenlee GT-12A Non-Contact Voltage Detector
  • Patented automatic self test
  • Bright LEDs flash and audible alarm sounds if AC voltage is present
  • Silent mode for use in quiet areas
Milwaukee 2202-20 Voltage Detector with LED Light Milwaukee 2202-20 Voltage Detector with LED Light
  • Voltage Detector W/Led Light
  • The product is easy to use and easy to handle
  • The product is highly durable
Southwire Tools & Equipment Tester, NCVT ADV Dual 40150N, One Size, Multi Southwire Tools & Equipment Tester, NCVT ADV Dual 40150N, One Size, Multi
  • PEN STYLE non contact electrical tester for easy detection of AC voltage
  • AUDIBLE AND VISUAL INDICATION of AC voltage on two ranges:12 to 1000V and 100 to 1000V
  • BI-COLOR LED verifies tester is on and range selected; red LED & beeper indicate voltage is detected

Top 6 Best Non Contact Voltage Tester

Klein Tools Voltage Tester

Discover the Klein Tools Voltage Tester, crafted for ease of use and unmatched reliability. It excels with a CAT IV safety rating, ensuring protection up to 1000 volts. This tool is designed to alert you with both sound and light, allowing a clear understanding of the electrical current’s intensity without direct contact. The standout feature is its LED bar graph, providing immediate visual feedback, so you’re never left guessing in dimly lit environments.

The flashlight on the Voltage Tester Pen can be used at any time, not just when you’re trying to detect voltage.

The model boasts versatile functionality, catering to diverse electrical tasks with its ability to detect both low and standard voltages. Its auto-shutdown feature is a game-changer, ensuring the battery’s longevity by automatically turning off when not in use, saving you the hassle and extra cost of frequent replacements.

If you’re looking for a mix of versatility, high quality and tonnes of extra features – Klein’s Voltage Tester is the right tool for you.

It comes in variants that offer an optional flashlight or laser pointer to make tasks easier, as well as infrared thermometer so it can do more than just test voltage levels!

  • Safety Rated CAT IV
  • Audio and visual display feedback
  • Voltage graph
  • Includes optional attachments
  • Can’t get all extras at once

Fluke Voltage Tester

If you’re okay with spending a little bit extra on your voltage detector, then we recommend going with this non contact voltage tester from Fluke.
In addition to being the most reliable model in its price range, it also comes equipped with new Voltbeat technology that allows for self-testing—meaning if something goes wrong and there is an issue detected by the sensor itself instead of another device like a nearby voltmeter or oscilloscope.

This nifty feature ensures inaccuracy won’t occur as easily while still providing CAT IV protection up 1000 V!

When you want to avoid getting shocked from a live current, this pen will help. This model works quickly and reliably with its two warning mechanisms that tell the user when voltage is present: by emitting an ear-piercing beep, or glowing red for visual indication of high voltage at work.

Thanks to its durable housing and sleek design, it can easily go on busy jobsites without being damaged as well!

The Fluke Non-Contact Voltage Tester is one of the most durable models on our market. Though it comes with a slightly higher price tag, we think this product pays for itself in its resilience and long-term reliability!

If you love all things Fluke – especially their excellent multimeters – then this voltage pen will be your new favorite tool.

  • Safety Rated CAT IV 1000 V
  • Detects through insulation
  • Sound and light display on detection
  • Continuous self-test
  • Slightly expensive option

Sperry Voltage Tester

Experience the Sperry Instruments Voltage Tester, a compact, durable, and intuitive device capable of identifying AC voltages ranging from 12V to 1000V. Its adjustable sensitivity dial enhances its precision, especially for lower voltages, ensuring you’re alerted with both visual flashes and clear audible beeps, offering a 360-degree detection experience.

The voltage sensor has some great safety features! The fully insulated probe tip eliminates the risk of contacting live electrical wires. A patented battery check feature ensures that the tester and batteries are operating properly, which can eliminate false-negative readings

Here’s a list of features of Sperry Instrument’s Voltage Sensor:

  • Adjustable non-contact sensitivity detects voltage from 12-1000V AC
  • Audible and 360-degree flashing visual indication
  • Allows for sensitivity adjustments in multiple-wire applications
  • Operates from single AAA battery
  • Patented battery self-test feature
  • Soft grip with a contoured design
  • Pocket clip
  • CAT III 1000 V Safety Rated

The Sperry voltage sensor is a great buy for anyone on a budget. Not only does it offer all the features you might ask from an investment like this, but with its low price tag there’s no reason not to go ahead and purchase one!

  • Safety Rated CAT III 1000 V
  • Budget friendly
  • Compact sized
  • Visual and audio display when voltage detected
  • Outstandingly durable
  • Insufficient detailed instruction booklet

Greenlee Voltage Tester

Greenlee’s commercial electric voltage tester is another one of our favorite products thanks to its expanded versatility when compared to other models in the same price range.

This model features a silent mode that you can use when quiet is needed on the workplace, and also has an automatic shutdown feature which will help conserve battery life for those who are always forgetting their charger at home!

We love this product because it includes helpful design elements such as audible and visual cues if there’s any electricity present- even without output tone of voice or anything else extra like a sounder alarm.

The best part? You don’t have to worry about constantly finding new batteries with these too – just charge up once every few months!

This voltage detector is perfect for those long hours on the job as it’s ultrasonically welded and durable. The battery cover, unlike other models that may require your nails to remove, can come off easily with a little push or pull of one hand!


  • Safety Rated CAT IV 1000 V
  • Self-testing
  • Silent mode
  • Easy to use
  • Too expensive for its capabilities

Milwaukee Voltage Tester

This voltage tester pen is perfect for those who are looking to purchase a reliable and easy-to-use tool. This product, made by Milwaukee, features an ergonomic design that makes it easier than competing models on the market. You may be surprised at how well this device can perform when you consider its midrange price point!

This product features a solid construction that will help keep it reliable for at least the next two years. You’ll find that this model even comes equipped with an LED flashlight to assist you in finding power outlets in dark areas.

As you get closer and closer to the voltage source, the unit starts turning red and emits beeps of increasing frequency until they are so fast as to sound like white noise (learn how a non-contact voltage tester works).

The Milwaukee Voltage Tester is the perfect choice for checking your home’s electrical system. It has a simple design which makes it easy to use and provides quick results with accurate measurements every time!

  • Safety Rated CAT IV 1000 V
  • Dependable design
  • Flashlight
  • Sound alerts changes with proximity
  • Less extra features

Southwire Voltage Tester

Southwire’s non-contact voltage tester pen is designed to withstand the elements. If you need a quality product for work sites outdoors, then this IP67 waterproof model will be just what you’re looking for with its resistance to water infiltration and ability to sustain up six-foot drops without any problems!

Southwire also included their patented dual-range detection on this electrical tester that can go from 12V – 1000V or 100 V –1000v so it meets every user’s needs in most cases.

The Southwire Voltage Tester stands out as the ideal tool for contractors, electricians, and savvy homeowners. It’s equipped with dual flashlights, enhancing your ability to safely pinpoint live voltage sources effortlessly, whether at home or on a job site, ensuring accuracy and safety in every inspection.

Additionally, this ncvt even has an advanced probe tip on the back to get into outlets tight spaces more easily so it’s perfect for any situation where there may be high levels of the current present (i.e., wall sockets). It also comes with IP67 water resistance which makes it incredibly durable!

  • Safety Rated CAT IV 1000 V
  • Dual range detection
  • Fall-resistant
  • Waterproof Housing
  • Unmatched the Fluke & Klein

About Thomas Hawkins

I run Electrician Apprentice Headquarters, a one-stop-shop for learning how to become a licensed electrician in the USA. I'm a licensed Master Electrician with over 20 years experience working in the Mining & Construction industries. Why do I do it? Well, because even plumbers need heroes.

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