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Triplett 2022 Full Product Line Catalog: Volume 1 Now Available!
Triplett 2022 Full Product Line Catalog: Volume 1 Now Available!
Non-Contact Voltage Detection Pens

Non-Contact Voltage Detection Pens

Triplett offers a range of some of the best voltage tester pens for precise testing of voltage presence. Our high-performance non-contact voltage tester pens have adjustable sensitivity with a measurement range from 25 to 1000ACV and a dual-color tip to indicate high/low voltage range (red for high voltage range and green for low voltage range). The high sensitivity features allow it to detect low voltage AC wiring, mainly found in control circuits, thermostats, video surveillance systems, doorbell circuits, and so on. They also feature small, in-built LED flashlights for working around electrical work boxes. Our non-contact voltage tester pens are lightweight and convenient to carry everywhere due to their pocket size.

Non-contact voltage detector pens are designed to test the presence of voltage in electrical wires, cables, devices, or equipment without the need to make direct contact. These AC voltage detector pens, also known as volt sticks, are used by electricians, engineers, and technicians, to locate or troubleshoot faulty wiring or equipment on remote sites.

  • New
    Triplett Non-Contact Voltage and Magnetic Field Detector ET350
    Triplett Non-Contact Voltage and Magnetic Field Detector ET350
    Triplett
    $24.99


    The Triplett Model ET350 (for US use) combines a Non-Contact Voltage and a Magnetic Field Detector. Read More > DESCRIPTION The Triplett Model E...

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    $24.99
  • New
    Triplett Test Equipment & Tools
    $14.99


    The Triplett Model ET30 Magnetic Field Detector quickly determines the presence of a magnetic field including AC, DC and Permanent Magnets. Read M...

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    $14.99
  • Triplett Sniff It 3 Non Contact AC Voltage Detector 9606
    Triplett Sniff It 3 Non Contact AC Voltage Detector 9606
    Triplett
    $11.99


    Triplett Sniff-It 3 is a high-performance AC Voltage detector with adjustable sensitivity that has a wide measurement range of 25 to 1000ACV, Dual ...

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    $11.99
  • Triplett Sniff It 3 Non Contact AC Voltage Detector 9606
    Triplett Sniff It 3 Non Contact AC Voltage Detector 9606
    Contact Sales
    Triplett
    Original price $11.99
    Current price $7.99


     Triplett Sniff-It 3 is a high-performance AC Voltage detector with adjustable sensitivity that has a wide measurement range of 25 to 1000ACV, Dual...

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    Original price $11.99
    Current price $7.99
    Contact Sales
  • Triplett Magnetic Field Detector ET30
    Triplett Magnetic Field Detector ET30
    Save $5.00
    Triplett Test Equipment & Tools
    Original price $14.99
    Current price $9.99


    The Triplett Model ET30 Magnetic Field Detector quickly determines the presence of a magnetic field including AC, DC and Permanent Magnets. Read Mo...

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    Original price $14.99
    Current price $9.99
    Save $5.00
  • Triplett Sniff It Jr Non Contact AC Voltage Detector 9604 horizontal
    Triplett Sniff It Jr Non Contact AC Voltage Detector 9604
    Triplett
    $4.99


    The Triplett Sniff-It™ Jr is a Non Contact AC Voltage detector with a built-in flashlight.  It detects AC voltage from 50 to 600V and has aubile an...

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    $4.99
  • Triplett Sniff It Non Contact AC Voltage Detector 9602 light
    Triplett Sniff It Non Contact AC Voltage Detector 9602
    Triplett
    $14.99


    The Triplett Sniff-It 2 is a high performance non-contact AC Voltage detector with adjustable sensitivity. It provides a wide measurement range of ...

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    $14.99

Know More About Triplett Non-Contact Voltage Detection Pens:

What Are Non-contact Voltage Detector Pens?

The voltage detector pens identify voltage presence in any electrical devices or equipment, with a buzzing sound and light at the tip of the tester. The device uses a battery to power devices and can detect electricity when it comes close in the range of electrical sockets, wires, live adapters, connection terminals, and more. The non-contact voltage detector pens are referred to as Electrical tester pen, electric detector pen, voltage detector pen, contactless voltage detector, and AC voltage detector pen.

Most of the voltage detector pens resemble a thick writing pen, while many have advanced features such as infrared (IR) thermometers and flashlights. The basic components of a non-contact voltage detector pen include a pocket clip, battery cap, IR thermometer sensor, laser pointer, LCD screen, voltage detection power button, IR thermometer power button, and flashlight. At Triplett, we design the best voltage detector pens with their drop resistance and impact in an ergonomic design. These voltage tester pens are CAT III rated and include AAA batteries. The easy-to-use thumbwheel helps in detecting accurate voltage range.

How Does A Non-Contact Voltage Detector Pen Work?

As the name implies, a contactless voltage detector pen works by detecting the electric field of the object conducting an alternating current. The device detects the presence of voltage through capacitive coupling. A contactless voltage detector achieves this without making any direct contact with the conductor. The in-built sensor present at the tip of the tester glows, and the unit beeps when it senses voltage in a circuit. This mechanism is quite different from the electrical circuit traces or tone generators.

How Do I Use a Non-Contact Voltage Tester Pen?

Before proceeding to use any type of non-contact voltage detector pens, it is important to understand and follow the important instructions and warnings mentioned in the manual by the manufacturer. Here are some safety precautions when using a non-contact voltage tester pen.

  • The first thing is to verify where to place the tip of the tester on a live wire or system. Next, for precise voltage readings, check the tester against a known voltage source to ensure batteries are fully operated or the voltage tester didn’t malfunction during the test.
  • Do not put the lead into the wrong sockets; else it may lead to hazardous results, such as shorting of the circuit and much more.
  • Ensure that the tester doesn’t touch anything other than live wires.
  • Avoid using test leads if the protective insulations on the probes or leads are cracked or worn.
  • Make sure you turn off the circuit immediately after testing.

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