Safety is always a concern, especially when it comes to working with electricity. That’s why it’s important to have the correct tools for the job, like a non-contact voltage tester. This handy tool can help you detect electrical current without having to come into contact with it. In this blog post, we’ll discuss the different types of non-contact voltage testers and help you pick the best one for your needs.
A non-contact voltage tester is an excellent tool to have in your toolbox. It’s a quick, easy, and reliable way to check whether a wire or outlet is carrying electric current. This is an important step when working on electric equipment, so make sure you have one for both hobbyists and professionals.
No matter what project you’re working on, a non-contact voltage tester is functional. This tool will help you know if it is safe to proceed with the project. It is crucial to use when working with alternating current (AC).
There are many different types of non-contact voltage testers. It can be difficult to figure out which one to buy. But don’t worry, We have a list of the best ones and a guide on what to look for when you’re buying one.
What is a non-contact voltage tester?
A non-contact voltage tester is an effective device that helps you check for electricity without having to touch any wires or components. It is an essential tool for making sure that the environment you are working in is safe.
How does a non-contact voltage tester work?
NCVT tools have a tips sensor that checks for electricity in wires or power outlets. If there is voltage present, the NCVT will show this with a visual indicator (usually an LED light) and sometimes with an audible sound from a buzzer.
Non-contact voltage testers work by identifying the magnetic field that’s generated by electricity. This magnetic field moves through insulation and plastic, so even at a distance, the NCVT can tell whether or not there is electricity present.
Non-contact voltage sensors are among the safest ways to check for voltage because you don’t have to touch any wires or electrical equipment.
What is an NCVT used for?
Non-contact voltage testers are used to detect voltage in any situation where it might be dangerous. For example, you might use a non-contact voltage tester when:
- Working on electrical wiring.
- Changing light bulbs.
- Checking circuit breakers.
- Working with outlets.
- Troubleshooting intercoms, doorbells, or security equipment.
In short, an NCVT can be really useful when doing any DIY homeowner tasks that involve AC electricity.
Klein Tools NCVT-3
The Klein NCVT-3 is the best non-contact voltage tester because it has several great features. It is a good value because it does not cost a lot of money.
The NCVT-3 is a dual-range model. This means it can detect both high and low voltages. It also has a LED bar graph that tells you what voltage you are dealing with. This makes it unnecessary to buy separate testers for high- and low-voltages.
Another great feature of the Klein NCVT-3 is the built-in flashlight. This is really helpful when working in poorly lit areas, like crawl spaces, attics, and areas above ceiling-mounted lights. With this tester, the flashlight works independently of the testing function, so you can use it as a standalone tool.
The Klein NCVT-3 has been designed to last. The tool can withstand falls from up to 6.5 feet and also has an IP67 rating. This means that the tool is fully dust-sealed and can be submerged in up to 1 meter of water. So even if you use your non-contact voltage tester in a wet or dirty environment, it will be just fine.
Fluke 1AC II VoltAlert
If you know about electric testing tools, then you will not be surprised that a Fluke product is usually listed as the best high-end non-contact voltage tester. Fluke products are known for their quality and accuracy, which is why they are the top choice for NCVT products.
The Fluke 1AC II VoltAlert comes with a unique feature called Volbeat. This feature constantly checks whether the circuitry and battery are both working correctly. If there is a problem, you will be notified before you do any testing.
The 1AC II has a brightly illuminating tip and a clear beeping sound to warn you of a voltage. This dual notification system removes any doubt that you miss the detection of a live wire or outlet.
This model is designed to be durable. But if it breaks in its first two years of use, you can always count on Fluke’s excellent warranty.
The Fluke 1AC II is an excellent multimeter, but it doesn’t detect low AC voltages. If you need to test lower voltages, you should consider the Fluke 1LAC-A-II. It has a range of 20-90V and can help you reliably detect lower voltages. Just be careful, because these can be dangerous!
Klein Tools NCVT-2
The Klein Tools NCVT-2 is the most affordable non-contact voltage tester. It is a good choice when you are on a budget because it does its job well.
The NCVT-2 has an auto power-off function that turns the tool off automatically after a period of not being used. This saves battery life and also makes sure the device is not empty if it is turned on by accident.
The tool can detect both low voltage (12-48V AC) and standard voltage (48-1000V AC). It has a bright LED built-in so you can see what you’re working on.
If you are looking for a small voltage tester that doesn’t have many features, you might want to look at the Amprobe VP-440. It is compact, reliable, and easy to use.
The VP-440 is very easy to use. It doesn’t have an on/off button- it’s always on. But it has energy-efficient circuitry, so the batteries last for a long time. You’re not required to change the batteries very often, which is ideal if you only need to use them once in a while.
The device is very compact and easy to carry with you. It also doesn’t take up much space when you store it.
Some people might think that there is a downside to not having a buzzer on the tester. But this can actually be a benefit for the people who get annoyed by a beeping sound each time they check for voltage.
Klein Tools NCVT-4IR
The Klein Tools NCVT-4IR is a voltage tester that also has a built-in infrared thermometer. This tool is designed for professionals who work in the heating, ventilation, and air conditioning industry. But even homeowners can find an excellent use for this tool since it is easy to use and has a lot of features.
This model has a great feature- an infrared thermometer. You can use it to measure and gauge the temperature of anything you point it at, as long as it’s not too reflective. It measures from -22 to 482 °F, which is really helpful for measuring things around your home, office, or workshop.
The device has a laser pointer to help you target the measurement area to get accurate readings. This ensures that you are measuring the surface and not another part of the object.
The NCVT-4IR can detect voltages from 12 to 1000V. This makes it perfect for high- and low-voltage testing. The device also has an auto power-off function that disables the device when it is not in use, helping to conserve battery life.
If you are more interested in construction than HVAC applications, the Klein Tools NCVT-6 might be a better choice for you. It is very similar to the NCVT-4IR, but it comes with an integrated laser distance meter instead of a laser thermometer.
Buyer’s Guide – Features to look for when choosing a non-contact voltage tester
When purchasing a non-contact voltage tester (NCVT), it is essential to pick the one that is best for you. Not all NCVTs have similar features, and because of this, a multimeter that’s best for others might not be best for you. Make sure to pick one that has the features you need so that you can use it effectively.
Let’s look at some features of NCVTs that you should consider while making your purchasing decision:
When using your non-contact voltage tester, always be aware of the safety hazards. Make sure you are not in danger of getting electrocuted if something goes wrong.
The safety rating for electric testing equipment is categorized into four levels, from CAT I to CAT IV. The safest category is CAT IV. When it comes to non-contact voltage testers, you should only consider equipment with a CAT III safety rating. You can find more information about the safety categories in the buyer’s guide for multimeters.
Another important thing to consider is the voltage the testing tool can handle safely. For example, a tool with a safety rating of CAT III 1000V can handle voltages up to 1000 volts.
When doing common DIY work with electricity around the house, you will encounter voltages of around 120V in the US and 230V in the EU. Three-phase voltages can be relatively higher, up to around 400V.
Most non-contact voltage testers can be used for voltages up to 600V or 1000V. With these maximum voltages, you’ll be safe when working with standard voltages. You will also be protected from overvoltages, which are dangerous voltage spikes that can occur when something is not working properly.
If you are looking for a non-contact voltage tester that will last you a lifetime, choosing one with the high build quality is important. This means that it will be able to withstand the wear and tear of everyday use.
One way to identify a durable non-contact voltage tester is by its features, which may include:
- Dust can damage the NCVT, so keeping it out of the housing is essential. One way to do this is to make sure that the housing is dust-tight.
- If you wish to use your NCVT in wet or muddy environments, you need to make sure that the device is water-resistant. This means that if you happen to drop the device, no water will be able to get in and damage it.
- Drop tests are a way of testing how well a tool can withstand being dropped. This information is helpful in knowing that the tool will not break easily if it falls.
Dust and water protection are often together. The number after IP means how much dust the thing can take. The seven means the tool can go in 1 meter of water and still work.
Having an NCVT can be really useful, especially if you’ll be using it in difficult or challenging situations. But even if you’re not going to use it all that often, it’s good to have a device that you can depend on, especially when you need it. And you don’t want that tool to break down on you when you need it the most.
One non-contact voltage tester that might interest you is the Southwire 40150N. It is durable and can survive a 6′ drop test.
Dual Range Voltage Detection
There are many different types of voltage testers. Some can detect high voltage alternating current, while others can detect low voltage AC. You can also find models that have dual-range voltage detection.
The Klein Tools NCVT-2 has two detection ranges: low voltage (12-48V AC) and high voltage (48-1000V AC). This means that you don’t have to worry about switching between the two ranges yourself; the tool does it automatically.
Dual-range testing means that you can use a device in a wider range of situations. This means that you don’t need multiple devices with different ranges.
Some NCVTs have an adjustable sensitivity dial. This lets you fine-tune the device so that it doesn’t give false positives (for example, because of neighboring wires). It also makes sure that the voltages you do want to detect are seen by the tool.
If you want to have your non-contact voltage tester with you at all times, or if you want it to be easily accessible, then it’s a good idea to go with a pen-style tester.
These models are relatively small, portable, and usually come with a pocket clip that allows you to attach the device to your pocket.
A good non-contact voltage tester is not expensive. You can find a much more reliable model for around $20. But if you want extra features, you might need to spend a bit more.
It doesn’t matter which model you pick; make sure that it has all the features you need and that it meets safety standards. It isn’t worth saving money if the tool does not meet your needs or if it does not keep you safe.
If you just need to check the voltage, a non-contact voltage tester is a good option. But if you want to try for more things, it is better to get a multimeter.
Multimeters allow you to test and measure both AC and DC voltage, measure current, check for continuity, and more. They are more expensive than NCVT’s, but they are worth the price because of all their features.
Non-contact voltage detectors typically use either AAA or watch batteries. These batteries cannot be recharged, so it is essential that the NCVT uses battery power efficiently.
Some of the better NCVTs, such as the Fluke 1AC II, come with low-power circuitry that restricts the amount of current drawn from the battery. This helps to make sure that the device doesn’t stay on until the batteries are drained. Additionally, some NCVT models even come with a battery check function to help you keep an eye on your batteries’ charge level.
These functions mean that the device will always be ready for you when you need it. You won’t have to search for new batteries before you can continue your project.
When looking for a non-contact voltage tester, it is important to check the notification methods that the device has. This will help you know if the device is able to let you know when there is voltage present.
One way to know when there is voltage present is by using a device with an LED. When the tip of the device is close to a magnetic field (like when voltage is present), the LED will light up.
The device can also let you know when it finds a voltage. This is done by making a noise. Some models come with a buzzer that makes an audible noise when the device is close to a magnetic field.
Having multiple notification methods will help prevent any misinterpretations of the voltage test results. Look for a non-contact voltage tester that has bright LED lights and a clear, audible buzzer.
Some NCVTs come with extra features that can be helpful in certain situations. The flashlight function is the most common feature, and it can be useful when you are working in low-light conditions.
The Klein Tools NCVT-4IR infrared thermometer is a great tool for HVAC applications and construction work. It has the ability to take temperature readings from a distance, making it easier to get an accurate reading. The Klein Tools NCVT-6 laser distance meter is also a great tool for these applications. It can measure distances quickly and easily, allowing you to get the job done faster.
When you are looking for a tool to use around electricity, it is essential to choose one that is safe. You can trust brands like Fluke, Klein Tools, Gardner Bender, Amprobe, and Southwire to make safe tools.
The Best Non-Contact Voltage Tester Reviews
A voltage tester is a vital tool to have in your toolbox. This is the first tool you should use when trying to fix something that isn’t working.
A non-contact voltage tester can quickly check for electrical currents in a device or machine. This tool is especially handy for electricians, who need it every day for their work.
This article will examine various voltage testers to determine the most effective and convenient.
Let’s get started!
Delphi Max Start AGM Premium Automotive Battery
The Fluke T6 voltage tester weighs one pound and features an easy-to-read digital LED display. It is made of plastic.
The Fluke voltmeter is a good tool to consider for your electrical work. It is safe to measure current or AC voltage without contact with a live wire. This tool also gives quick answers, which allows you to fix power challenges more quickly.
This tool is great because it lets you work anywhere. It has a jaw opening of 0.7 inches and can fit wires as small as AWG 4/0. It can also accurately measure complex signals, resulting in superior results when testing nonlinear loads.
This device can be used on darker workstations. It has lights that help it show readings in these areas. The screen will turn green after it detects continuity. You will also get a ground connection using alligator clips and the ground lead.
Sperry Instrument STK001
Gardner Bender makes this voltage tester. It is 2x6x9 inches and easy to carry around—a single AA battery powers the device, weighing 4.8 ounces. As a multi-tester, you can use this equipment to do various electrical activities at home.
Sperry STK001 is a good choice because it is durable and doesn’t need to be replaced or repaired often. It also has a rubber grip and an ergonomic design, making it easier. It is brightly colored, so it is easy to read in dark areas. The screen display is clear, so you can see it in dim light.
This device can be used to sense the sensitivity of circuits that use AC voltage between 50V and 1000V. It has a clear indicator with high-quality audio that warns you of any danger and makes it easy to use.
This device has several ratings that make it safer. You are safe when using this device because it doesn’t touch live wires. This means you can easily install electrical equipment.
Neoteck Non-Contact AC Voltage Tester
This brand of Neoteck has a size of 6.54 by 2.32 by 1.26 inches, and it weighs 2.29 ounces. It gets power from the 2AA battery and has a voltage of 1000V. The body material is ABS, and the display is LED.
This non-contact AC voltage tester is different from the ones above. It makes different alarm sounds and LED indications to show you which wire is live and which one is not. It’s safe and easy to use, so you’re less likely to get shocked.
This multi-use device can be used as a torch in dark areas to check if switches or outlets are working. It also detects voltage, which will make it shine. Although it is best for professional use, you can also use it for your DIY projects around the house.
Milwaukee 2202-20 Voltage Tester
Milwaukee 2202-2- is a good voltage tester. It is lightweight, small, and easy to use. It runs on batteries or an AC adapter. The LED display makes it easy to see in dark environments.
The Milwaukee 2202-2- voltage tester is easy to use and lasts longer than other voltage testers. It is also smaller and lighter, which makes it easier to handle. This voltage tester is also cheaper and easier to use, as you only need to push a button to detect voltage.
This voltage tester is simple and can properly measure electrical cables with voltages ranging from 12 to 1000. It also differentiates between three strong, low, and moderate voltage levels so you can get accurate readings depending on your needs.
Simple to use, this voltage tester provides accurate readings for cables ranging from 12 volts to 1000 volts. It also allows you to customize the detection range to meet your needs.
The Epsilont tester has a cover that makes it easy to carry and keep track of. It is made of polycarbonate plastic, so it will not need to be replaced often. This tester is also safe to use as it does not come into contact with live wires.
This light comes with a torch that turns off automatically to save energy. The display screen is bright and simple to read, making it suitable for usage in dimly lit areas. It is lightweight, weighing only 1.76 ounces.
eOUTIL is a voltage tester pen that can measure voltages between 60 and 1000 volts AC. It meets the safety standard of CAT IV, CE. eOUTIL is also well insulated. You are making it safe for use when detecting the voltage in cables wires with AC volts.
It will produce light on the sensing edge if it detects electric volts. When you push the torch button on eOUTIL, it produces white light, allowing you to work in darkened settings. This device will also make buzzing sounds and red lights if it detects the voltage.
The knife has a strong and high-quality casing that lasts for a long time. The pocket clip prevents you from losing the knife while at work.
The weight and size of this flashlight make it easy to store and carry. It also has a power source that is easy to replace. You need to press the cover and place the battery correctly in the body.
JASTIND 3-48V Low Voltage & Light Tester
The JASTIND 3-48V voltage tester from Tianchang Zhaohong instruments can be used to monitor the electric circuit in cars or connections between 3v and 48v.
JASTIND is extremely exact, and its reading is displayed on the LCD digital display. Although it is not a pocket-sized device, it is portable and may be carried. In addition, it has a 3.6-meter spring that will enable you to move around with ease while at work.
The steel on this tool is sharp and rust-free. It can easily pierce wires. The acetate fiber makes it strong and durable. And the weight of 8 ounces makes it easy to carry around.
JASTIND can detect voltage in automobiles’ charging, ignition, and battery charging systems. It features a 3-48 volts DC measurement range with a voltage precision of 0.5 volts. You can effortlessly read or operate it in dark situations using the backlit display. It also has a 140-inch spring wire extender, which allows you to utilize it in more remote locations.
Southwire 40150N Advanced Tester Pen
The Southwire 40150N adjustable voltage tester is as effective as other voltage testers, such as Klein or Sperry. However, we have a few additional observations to make. It’s easy to use and safe, making it a great option.
The Southwire Voltage Indicator detects the voltage of an object. Between 12V and 1000V, the device is capable of operating. There’s nothing else to do.
The manufacturer indicates the range in use by turning the LED on the tip into yellow if you intend to check low-voltage sources and use the green mode for standard voltage gadgets. The tip flashes red once it finds a live wire and beeps loudly.
The self-test battery function will help you avoid getting false voltage readings when the battery is low.
This tool is built sturdily and can resist water. So you can rely on it.
The small size of the electrician’s hands can be a problem when managing the device.
Gardner Bender GVD-3504 Tester
Suppose you want to test medium-voltage devices such as circuit-breakers, cables, socket-outlets, and bus bars between 50V and 600V. In that case, the Gardner Bender GVD-3504 is a good option.
This tester can detect whether or not a current is live. It will tell you this with both visual and audible indicators. Even though the voltage detection isn’t very impressive, this tester can still be used to test small household appliances.
The Gardner Bender GVD-3504 has no confusing buttons or functions, so it is easy to use even if you have never used this type of tester before.
The cover of the tester is made from plastic and might break after you drop the tool a couple of times. The warranty is only half as long as the other warranties.
Types of Non-Contact Voltage Testers
Given the range of testers on the market, you’d probably be able to agree that they aren’t all the same. There are two distinct sorts for your information, depending on their type of sensor.
- Inductively coupled voltage sensor.
Inductive couplers can be used to transmit 24-V DC and output signals. They work by having a base connected to power, which creates a magnetic field. This then reacts with the remote, which is the other component of the coupler.
The current is sent to the sensors using built-in sensors and inductive couplers. This is a way to do it without having contact with the cables.
- Capacitive coupled sensor
Capacitive coupling is when two capacitors are close to each other. When you put a voltage on one of them, a current will flow between them. The smaller capacitors have more impedance.
When you place the voltage testers near a live conductor, it will be difficult for electricity to move between the testers.
When working with electricity, it’s very important to stay safe. A non-contact voltage tester is a gadget that helps you do that. It is important to be careful and not take any unnecessary risks. This way, you can deal with minor electrical repairs and fixes around the home yourself.
The Klein Tools NCVT-3 is a great tool for detecting high- and low-voltage alternating current. It’s equipped with a built-in flashlight that can help you see in dark areas. This tool is perfect for homeowners, but it can also be used for commercial and residential applications.
The Fluke 1AC II VoltAlert is a great choice for professionals who need a non-contact voltage tester. It is very reliable and can be used for voltages between 90V and 1000V. If you also need to test lower voltages (20-90V), you can complement it with the Fluke 1LAC-A-II.
The Klein Tools NCVT-2 is a great option for people on a budget. It is half the cost of other non-contact voltage testers, but it still does an excellent job. It also has a dual notification system and an auto power-off function, which makes it a great value.
If you’re required to work on projects that involve other than just detecting the presence of a voltage, a digital multimeter might be better for you. In addition to detecting a voltage, it can gauge the value as well. Digital multimeters can measure amperage, resistance, and a variety of different electrical properties. If you plan on doing more intermediate or advanced electrical work, you can’t go without one.
Frequently Asked Questions about Best Non-Contact Voltage Tester
Volt Sticks detect voltage using a special technique that doesn’t require you to touch the wire or surface with a probe. This is done by measuring the electric field that is produced by the voltage.
A multimeter is a gadget used to check the voltage and current of electricity. This is helpful when doing electrical repairs or DIY maintenance projects. You can use a multimeter to test batteries, appliances, and outlets.
The difference between a multimeter and a voltage tester is that a multimeter can measure different things while a voltage tester only detects whether or not voltage is present.
There are two ways to test for a live electrical wire. One is the non-contact voltage tester. This machine is placed near the wire to see if it is life. The other way is to use a digital multimeter. This machine tests how much voltage is running through the wire.
A non-contact voltage detector is a device that can tell you if there is electricity running through something without having to touch it. This tool is mainly used by electricians and electrical technicians.
The Klein Tools Dual-Range Non-Contact Voltage Tester will automatically detect low or standard voltage. A bright green LED will tell you that the tester is working. The light will also flash red, and two distinct warning tones will sound when either low or standard voltage is detected.
These devices are not 100% accurate, but they do a good job. You hold the tip near a suspected circuit, and it’ll tell you if there’s current or not.
Test quickly for energized circuits. Detect AC and DC voltages with non-contact volt detectors available from Specialized Products. They are safe and allow you to avoid exposure to high voltage electrical shock or personal injury.
The 2ac is the most recent model, and it is always on. It contains a button that lets you see if the battery is still OK. Older models may be turned on and off, such as the 1ac. Both devices use the same method to determine whether or not voltage is present. Still, the 1ac generates a noise to indicate whether the voltage is there, while the 2ac does not.
Multimeters are designed to detect electric fields. However, if you are using it in a non-contacting mode, it will only detect changing fields, like AC or transients. The meter reading will depend on the stray capacitance between live wires and the meter leads.
The Kaiweets HT100 voltage tester is a great choice because it has a 3-year warranty. It is also very durable and reliable. This voltage tester goes up to 12 volts and 1000 volts AC.
Using a multimeter to test if a wire is live without a tester. Set up the multimeter by rotating the dials to the V spot on the device.