Greenlee 52087526 GT13 Non-Con...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$103.04
$53.04
Greenlee 52087526 Non-Contact Voltage Detector

Greenlee 52087526 GT13 Non-Contact Voltage Detector, 50V-1000V AC with Flashlight

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Model: 52087526
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$103.04
$53.04
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Greenlee GT13 Non-Contact Voltage Detector, 50V-1000V AC

The Greenlee GT13 Non-Contact Voltage Detector (52087526) gives electricians and maintenance technicians a fast, safe way to confirm the presence of live voltage before touching wiring, outlets, or equipment. This detector senses AC voltage from 50V to 1000V at 50/60Hz without direct contact, delivering both audible and visual alerts the instant voltage is detected. A patented automatic self-test verifies circuit integrity every time the tool is powered on, so users can trust the reading before proceeding with any electrical task. Built for jobsite convenience, the GT13 also includes a bright integrated flashlight for illuminating panels, junction boxes, and other work areas with poor lighting, making it a practical everyday companion for troubleshooting and lockout/tagout verification work.

Key Features

  • Voltage Rating: Non-contact voltage detection from 50V to 1000V AC covers most residential, commercial, and industrial circuits.
  • Frequency Rating: Rated for 50/60Hz AC systems for broad compatibility with standard electrical service.
  • Automatic Self-Test: Patented self-test function verifies circuit integrity each time the unit is used, reducing the risk of a false safe reading.
  • Dual Alert System: Audible and visual alerts trigger immediately when voltage is present, so technicians get clear confirmation even in noisy or low-visibility environments.
  • Integrated Flashlight: A bright built-in flashlight helps illuminate outlets, panels, and confined spaces during inspection.
  • Versatile Detection: Detects voltage in outlets, lighting fixtures, circuit breakers, wires, and cables for a wide range of troubleshooting tasks.
  • Auto Power-Off: Automatically shuts off after 5 minutes of inactivity to conserve the included AAA batteries.
  • Included Batteries: Ships with (2) 1.5V AAA batteries so the detector is ready to use out of the box.

Technical Specifications

  • Product Model: GT13
  • Voltage Rating: 50V - 1000V
  • Frequency Rating: 50/60Hz
  • Included: (2) 1.5V AAA Batteries
  • Product Height: 1.016 IN
  • Product Length: 8.026 IN
  • Product Width: 5.016 IN
  • Country of Origin: CN

Typical Applications

  • Verifying Circuits Are De-Energized Before Service
  • Testing Outlets and Lighting Fixtures
  • Checking Circuit Breakers and Panels
  • Troubleshooting Wires and Cables
  • Residential, Commercial, and Industrial Electrical Maintenance

Why Greenlee?

Greenlee builds testing tools that electrical professionals rely on for accurate, repeatable results in the field. The GT13's patented self-test function and dual audible/visual alert system are designed to give technicians confidence in every reading, helping reduce the risk of contact with live circuits. With its 50V-1000V AC detection range, 50/60Hz compatibility, built-in flashlight, and battery-conserving auto shutoff, this Greenlee voltage detector is a practical, code-conscious addition to any electrician's toolkit.

Manufacturer Resources

Spec Sheet

Product Specs

Country Of Origin:
CN
Frequency Rating:
50/60Hz
Included:
(2) 1.5V AAA Batteries
Indication Type:
Audible and Visual Alert
Packaged Weight:
0.25
Product Height:
1.016 IN
Product Length:
8.026 IN
Product Model:
GT13
Product Width:
5.016 IN
Voltage Rating:
50V - 1000V
Volume:
40.902550655999995 CI
Product Type:
Voltage Detector
Department:
Electrical
Product Subgroup:
Voltage Testers

Greenlee 52087526 – Frequently Asked Questions

1) What voltage range does the Greenlee GT13 non-contact voltage detector cover?
The Greenlee GT13 (part 52087526) detects AC voltage from 50V to 1000V at 50/60Hz. That range covers standard 120V and 277V branch circuits, 208/240V, and 480V gear, so one pen works from receptacle level up through commercial panel work. It will not respond to DC, and anything below 50V AC is outside its range.
2) How do I know the Greenlee GT13 tester is actually working before I trust a dead reading?
The GT13 runs a patented automatic self-test that verifies circuit integrity, so the pen checks itself rather than relying on you finding a known live conductor first. Good practice is still live-dead-live on a known source, but the self-test catches a failed detector that would otherwise read dead on an energized wire.
3) Can I use a non-contact pen like the Greenlee GT13 to check a breaker, or do I need a meter?
The GT13 is listed for receptacle testing, wire and cable tracing, and circuit breaker testing, and it will also pick up voltage at lighting fixtures and on cables. It tells you present or absent, not how much. If you need an actual value, a phase-to-phase reading, or a continuity check, that is a multimeter's job. Most electricians carry both and use the pen as the first pass before opening anything up.
4) Does the Greenlee 52087526 voltage detector alert by sound or just a light?
Both. The GT13 gives an audible and visual alert when voltage is present, which matters in a loud mechanical room where you cannot hear the beeper, or in a ceiling where you cannot see the tip. It also has a built-in flashlight for working in dark panels, crawl spaces, and attics.
5) Do I need to buy batteries for the Greenlee GT13 voltage tester?
No, two 1.5V AAA batteries ship with it. The pen also shuts itself off after 5 minutes of inactivity, which is the detail that keeps a tester in a tool pouch from being dead the next time you reach for it.
6) Is the Greenlee GT13 small enough to carry in a shirt pocket on service calls?
It is a pen-style tester. Greenlee lists the product dimensions as 8.026 x 5.016 x 1.016 inches and a packaged weight of 0.25, the larger figures being the retail pack rather than the pen itself. It is light enough that MRO and property maintenance techs typically keep one per truck alongside a meter.
7) What is the exact part number and model to order for the Greenlee non-contact voltage detector?
Order Greenlee 52087526. The manufacturer's model designation for it is the GT13, and the two refer to the same tester, which is worth knowing when a spec or a prior PO lists one and your purchasing system shows the other.
How fast can I get the Greenlee 52087526 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Greenlee 52087526 come with a warranty?
Absolutely. The Greenlee 52087526 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Greenlee 52087526?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Greenlee 52087526 from ZenSupply?
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