Greenlee Non-Contact Voltage D...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$103.04
$45.18
Greenlee Non-Contact Voltage Detector with Flashlight 50V-1000V AC Professional Testing Tool

Greenlee Non-Contact Voltage Detector with Flashlight 50V-1000V AC Professional Testing Tool

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Model: GT13
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$103.04
$45.18
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Greenlee Non-Contact Voltage Detector with Flashlight 50V-1000V AC Professional Testing Tool

Professional Non-Contact Voltage Detection for Electrical Testing & Safety

The Greenlee Non-Contact Voltage Detector delivers reliable voltage detection from 50V to 1000V AC with patented automatic self-test verification for circuit integrity. This professional testing tool features audible and visual alerts when voltage is present, plus an integrated bright flashlight for use in dark work areas. Designed for receptacle testing, wire and cable tracing, and circuit breaker testing applications with automatic 5-minute shutoff to conserve battery life.

Professional Features & Benefits

  • 50V-1000V AC Detection Range: Provides comprehensive voltage detection capability for residential and commercial electrical systems.
  • Patented Automatic Self-Test: Verifies circuit integrity automatically, ensuring reliable operation and user confidence in test results.
  • Audible and Visual Alert System: Dual indication method provides clear voltage presence notification in various work environments.
  • Integrated Bright Flashlight: Built-in illumination enables safe testing and inspection in dark work areas and confined spaces.
  • Non-Contact Operation: Safely detects voltage in outlets, lighting fixtures, circuit breakers, wires, and cables without direct contact.
  • Auto Power-Off Feature: Automatically turns off after 5 minutes of inactivity to extend battery life and reduce maintenance.
  • 50/60Hz Frequency Rating: Compatible with standard North American and international electrical systems for versatile professional use.

Technical Specifications

  • Frequency Rating: 50/60Hz
  • Included: (2) 1.5V AAA Batteries
  • Indication Type: Audible and Visual Alert
  • Voltage Rating: 50V - 1000V

Professional Applications

  • Electrical Maintenance and Troubleshooting
  • Commercial Building Electrical Systems
  • Residential Electrical Service
  • Industrial Facility Testing
  • Construction and Renovation Projects
  • Emergency Electrical Response
  • Professional Electrical Contracting

Why Choose Greenlee Quality?

Greenlee delivers professional-grade electrical testing equipment with patented automatic self-test technology and dual indication systems. The integrated flashlight and automatic power-off features demonstrate thoughtful engineering for real-world electrical work environments, providing reliable performance and extended battery life for professional electricians and technicians.

Manufacturer Resources

Spec Sheet

Product Specs

Frequency Rating:
50/60Hz
Included:
(2) 1.5V AAA Batteries
Indication Type:
Audible and Visual Alert
Voltage Rating:
50V - 1000V
Product Type:
Non-Contact Voltage Tester
Department:
Electrical
Product Subgroup:
Voltage Testers
Product Group:
Test & Measurement

Greenlee GT13 – Frequently Asked Questions

1) What voltage range does the Greenlee GT13 non-contact voltage detector pick up?
The GT13 detects AC voltage from 50V through 1000V, which covers standard 120V and 277V lighting circuits, 208/240V single-phase, and 480V three-phase gear found in commercial buildings. It reads at 50/60Hz, so it works on North American and international supply alike. Below 50V, low-voltage control, doorbell, thermostat and most alarm wiring will not register, so don't rely on it to prove a 24V circuit dead.
2) Can a non-contact voltage tester like the GT13 be used to prove a circuit is dead before I work on it?
Use it as a first check, not as your lockout verification. The GT13 senses voltage through insulation without touching the conductor, which makes it fast for finding the hot leg in a receptacle, tracing wire and cable runs, and identifying which breaker is live. But a non-contact detector reports the presence of an AC field, not the absence of one under every condition, and it won't see anything below 50V. To prove dead for work under lockout, follow with a contact meter on the actual conductors. The GT13's patented automatic self-test verifies the detector's own circuit integrity, so you at least know the instrument is working before you trust a no-beep result.
3) How does the GT13 tell you voltage is present if you're working somewhere loud?
Two signals at once, audible and visual. The GT13 beeps and lights up together when it senses voltage, so a mechanical room full of running equipment doesn't cost you the indication, and neither does working in hearing protection. There's also a built-in flashlight for panel interiors, crawlspaces and unlit rooms where the indicator alone won't show you the conductor you're testing.
4) Do I need to buy batteries for the Greenlee GT13, and what does it take?
Two 1.5V AAA batteries ship with the GT13, so it's ready to use out of the box. AAA cells are the only consumable, and the detector shuts itself off after five minutes idle, which is what keeps a tester living in a tool pouch from draining between jobs. Stock AAAs for a fleet of techs and you've covered the whole maintenance requirement.
5) Will the GT13 work on 480V three-phase panels in an industrial plant?
Yes, 480V sits inside the GT13's 50V to 1000V AC range at 50/60Hz, so it will indicate on 480V three-phase feeders and gear. It's a presence detector at panel and branch-circuit level, useful for confirming which conductors are energized before you open something up. It does not read a value, so if you need to confirm phase-to-phase voltage or balance, that's a meter job.
6) Is the Greenlee GT13 a single model or are there different versions to choose from?
One model, one part number: Greenlee GT13. There's no handing, no range option and no version split to specify on the order, which makes it straightforward to standardize across a maintenance crew or a fleet of service vans so everyone is carrying the same detector with the same indication behavior.
7) What can I actually test with a GT13 on a service call?
Receptacles, lighting fixtures, circuit breakers, and wire and cable runs, all without contacting the conductor. For a property manager or MRO tech that's the daily list: confirming a dead outlet is really dead upstream, finding which breaker feeds which room, and checking whether a fixture whip is energized before pulling it down. The flashlight matters more than it sounds for panel and ceiling work.
How fast can I get the Greenlee GT13 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 GT13 come with a warranty?
Absolutely. The Greenlee GT13 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 GT13?
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 GT13 from ZenSupply?
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