Best Voltage Testers of 2026

Jennifer Fraser Avatar
Jennifer Fraser
Last Updated: 4 Feb 2026

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Voltage testers are essential tools for anyone working with electrical systems. These devices are designed to measure the amount of electrical energy present in a circuit or appliance, helping users to identify potential hazards and ensure that all connections are properly grounded. Voltage testers come in a variety of styles, from simple pen-shaped devices that can be used to check for live wires, to more advanced models that can measure voltage, current, and resistance. Whether you're a professional electrician or a DIY enthusiast, a quality voltage tester can help you work safely and efficiently.

At a Glance: Our Top Picks

VENLAB VD200 Non-Contact Voltage Tester Cover #TOP 1
VENLAB VD200 Non-Contact Voltage Tester
ftb score rating icon 9.9
Kewtech KT1780 Voltage Detector and Tester Cover #TOP 2
Kewtech KT1780 Voltage Detector and Tester
ftb score rating icon 9.8
Martindale VT12 Voltage and Continuity Tester Cover #TOP 3
Martindale VT12 Voltage and Continuity Tester
ftb score rating icon 9.6

Top 10 Voltage Testers

#TOP 1

VENLAB VD200 Non-Contact Voltage Tester

VENLAB
VD-200
Orange,Red
18*3.2*3.6 cm
VENLAB VD200 Non-Contact Voltage Tester Cover
VENLAB Voltage Tester VD200, 12V-1000V/48V-1000V Dual Range Non-Contact Electric Tester, Sensitivity Electrical Voltage Pen Indicator light with NCV, Flashlight, Buzzer Alarm, Wire Breakpoint Finder

The VENLAB VD200 Tester is a versatile and user-friendly tool for detecting voltage without direct contact. Its non-contact feature allows you to easily identify live wires by placing the tip near outlets or power cords, enhancing your safety. The voltage alarm provides audible alerts and visual signals, ensuring you are aware of the voltage levels nearby. With dual range options, you can adjust sensitivity for various applications, making it ideal for testing doorbells or printers with ease. Plus, its compact design includes a flashlight for use in dim conditions.

What We Like
Non-contact voltage detection
Audible and visual alarms
Adjustable sensitivity range
Compact and portable design
#TOP 2

Kewtech KT1780 Voltage Detector and Tester

KT1780
turquoise
No Size
Kewtech KT1780 Voltage Detector and Tester Cover
Kewtech KT1780 2-Pole Voltage Detector & Continuity Tester With LED Display and Torch, 690 V, Green, No Size

The Kewtech KT1780 Tester is a versatile tool that measures AC and DC voltages up to 690V, providing you with clear LED indications of the voltage detected. It features GS38 compliant slender probe tips, making it easy to access recessed terminals such as RCBOs. You can perform various tests, including continuity and phase rotation, ensuring your electrical systems are functioning correctly. Additionally, the self-diagnostic test helps you verify the tester's operation, giving you peace of mind as you work.

What We Like
Measures AC and DC voltages
Slender probe tips for easy access
Multiple testing capabilities
Self-diagnostic feature
#TOP 3

Martindale VT12 Voltage and Continuity Tester

VT12
Yellow
Small
Martindale VT12 Voltage and Continuity Tester Cover
Martindale VT12 Two Pole Voltage and Continuity Tester, Yellow

The Martindale VT12 Tester is a versatile tool for both professionals and DIY enthusiasts. The LED voltage indicator allows you to quickly and easily see voltage levels from 12 V to 690 V, ensuring safety and efficiency. It also includes a continuity test, helping you determine if an electrical path is complete. Additionally, the probe caps ensure GS38 compliance, providing peace of mind while you work. This reliable tester is designed to simplify your electrical tasks and enhance your productivity.

What We Like
Easy-to-read LED indicator
Wide voltage range
Includes continuity testing
GS38 compliant probe caps
#TOP 4

UNI-T UT15C Waterproof Voltage Tester

UT15C
black and red
Medium
UNI-T UT15C Waterproof Voltage Tester Cover
UNI-T, UT15C, MIE0116 Waterproof Voltage Tester, Electronic Tester

The UNI-T UT15C Tester is a compact and user-friendly device designed for efficient voltage testing. Its summer and LED indicator ensures visibility, helping you to easily identify readings even in challenging conditions. You’ll appreciate the battery warning feature, which alerts you when power is low, ensuring reliable performance. The bright LCD display provides clear information, allowing you to monitor voltage overshoot effectively. This way, you can work with confidence, knowing you have a reliable tool at your disposal.

What We Like
Compact design
Clear LED indicators
Battery warning feature
Bright LCD display
Phase rotation testing
#TOP 5

Fluke T90 Voltage and Continuity Tester

FLUKE-T90
Yellow
Pack of 1
Fluke T90 Voltage and Continuity Tester Cover
Basic Voltage and Continuity Tester

The Fluke T90 Tester is a vital tool for any electrician, delivering precise two-pole voltage and continuity testing. You can measure voltage from 12V to 690V, ensuring you have the right readings for various low voltage outlets. The continuity testing feature, with a range from 0 to 400kΩ, provides audible indications, making it easy for you to identify circuit integrity. LED indicators not only show the presence of AC/DC voltage but also alert you when the battery is low, ensuring you never miss a crucial reading.

What We Like
Accurate voltage and continuity testing
Wide voltage measuring range
Audible continuity indication
LED indicators for easy use
Improved probe protection
#TOP 6

Neoteck Non Contact Voltage Tester with LCD

NTK139
Grey
Neoteck Non Contact Voltage Tester with LCD Cover
Neoteck Non Contact Voltage Tester 12-1000V/48V-1000 Adjustable Sensitivity AC Voltage Detector Pen Live/Null Wire Tester With LCD Display Buzzer Alarm Wire Breakpoint Finder

The Neoteck Voltage Tester is a safe and reliable tool designed for both professionals and homeowners. It features a dual-range sensitivity, allowing you to test voltages from 12 to 1000V or 48 to 1000V, which helps you detect live and null wires even when they are close together. The non-contact design with an LCD display makes it easy and safe to identify live wires without direct contact. Additionally, its quick breakpoint testing mode helps you find electrical faults swiftly, saving you time and effort during repairs.

What We Like
Safe double insulated design
Dual-range voltage sensitivity
Non-contact with clear LCD display
Quick wire breakpoint finder
#TOP 7

Martindale VT25 Voltage and Continuity Tester

VT25
Yellow
Martindale VT25 Voltage and Continuity Tester Cover
Martindale VT25 Two Pole Voltage and Continuity Tester, Yellow

The Martindale VT25 Tester is a versatile tool for measuring voltage. It can handle voltages from 12 to 690 V AC/DC, making it suitable for various electrical tasks. The single pole phase test feature, which operates between 90 and 690 V, allows you to easily check phase presence. Additionally, the phase rotation test function ensures correct wiring by verifying the phase sequence. With optical and acoustic indications for continuity testing, you’ll receive clear alerts, ensuring your work is efficient and safe.

What We Like
Wide voltage range
Phase rotation testing
Optical and acoustic indications
Auto power off feature
Integrated LED torch light
#TOP 8

Klein Tools NCVT2P Dual Range Voltage Tester

NCVT2P
Multi
Klein Tools NCVT2P Dual Range Voltage Tester Cover
Klein Tools NCVT2P Dual Range, Non-Contact Voltage Tester, 12-1000V AC, Visual and Audible Indicators, Auto Power Off

The Klein Tools NCVT2P Tester is an essential device for detecting voltage levels from 12 to 1000 V AC, making it versatile for various tasks. Its dual-range detection feature allows you to tackle both low and standard voltage applications with ease. You will appreciate the simultaneous visual and audible indicators, which help you quickly identify the presence of voltage. Additionally, the clear indication of voltage absence through a green light ensures your safety during operations, giving you confidence in your electrical work.

What We Like
Dual-range voltage detection
Visual and audible alerts
Clear absence indication
Versatile application usage
#TOP 9

KAIWEETS VT100 Non-Contact Voltage Tester

VT100
Red and Black
KAIWEETS VT100 Non-Contact Voltage Tester Cover
KAIWEETS Voltage Tester, Non Contact Voltage Detector Pen, 50V to 1000V AC, Audible and Flashing LED Alarms, Wire Breakpoint Finder, Electrical Tester with Flashlight, Buzzer Alarm VT100

The KAIWEETS VT100 Tester is a versatile tool designed for detecting AC voltage between 50 to 1000V. With its non-contact feature, you can easily test wires and outlets without direct contact, ensuring safety during your electrical tasks. The visual and audible indicators provide clear alerts when voltage is detected, so you'll be promptly informed of any potential hazards. Additionally, the live wire detection helps you identify live and neutral wires based on the signal strength, enhancing your understanding of the electrical system.

What We Like
Wide voltage detection range
Non-contact testing for safety
Clear sound and light alerts
Identifies live and neutral wires
#TOP 10

Martindale VT28 Voltage and Continuity Tester

VT28
Yellow
Martindale VT28 Voltage and Continuity Tester Cover
Martindale VT28 Two Pole Voltage and Continuity Tester with LCD Display, Yellow

The Martindale VT28 Tester is a versatile tool designed for electrical professionals and DIY enthusiasts alike. It features an LED and LCD voltage display, allowing you to easily read voltage levels between 90 and 690 V. The single pole phase test functionality is invaluable for checking the phase of your electrical systems. Additionally, the phase rotation test ensures that the connections are correct, preventing potential issues. With continuity testing, you can quickly identify faults in circuits, aided by both optical and acoustic indications for your convenience.

What We Like
Clear LED and LCD display
Single pole phase testing
Phase rotation functionality
Continuity testing with sound
Auto power off feature
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Are voltage testers accurate?

These devices are not 100% accurate, but they do a pretty good job. You simply hold the tip near a suspected circuit, and it'll tell you if there's current or not.

2. Do I need a voltage tester or multimeter?

If you need to measure voltage, then you a voltmeter is sufficient, but if you want to measure voltage and other things such as resistance and current, then you are going to have to go with a multimeter. The most significant difference in both devices is going to be whether you buy a digital or analog version.

3. What voltage tester do electricians use?

Solenoid Voltage Tester Solenoid volt meters are capable of testing for both voltage and polarity. Electricians use them frequently because they can test both AC voltage and DC voltage in a range from 100 to 600 volts.

Editor's Notes

During our voltage tester research, we found 306 voltage tester products and shortlisted 10 quality products. We collected and analyzed 127,094 customer reviews through our big data system to write the voltage testers list. We found that most customers choose voltage testers with an average price of £32.43.

The voltage testers are available for purchase. We have researched hundreds of brands and picked the top brands of voltage testers, including VENLAB, Kewtech, Martindale, UNI-T, Fluke.

Written by
Jennifer Fraser Avatar

Jennifer Fraser is a licensed contractor specializing in sales, maintenance, and kitchen, bathroom, and home appliances, tools, and utilities. She owns a store in Leeds where you can get any home and tool appliance. Jenny has a degree in literature, but she combines her knowledge and experience with her degree to publish DIY articles on solving home appliances issues to keep up the family enterprise.