Greenlee GT-16 Adjustable Non-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$123.09
$96.09
Greenlee GT-16 Adjustable Non-Contact Voltage Detector CAT IV 1000V AC 5-1000V

Greenlee GT-16 Adjustable Non-Contact Voltage Detector CAT IV 1000V AC 5-1000V

(No reviews yet) Write a Review

Model: GT-16
Selected Model is

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

$123.09
$96.09
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Greenlee GT-16 Adjustable Non-Contact Voltage Detector

Professional Non-Contact Voltage Detection with Adjustable Sensitivity

The Greenlee GT-16 Adjustable Non-Contact Voltage Detector delivers reliable voltage detection capabilities for professional electrical applications. This CAT IV 1000V rated detector safely identifies AC voltage from 5-1000V without touching bare conductors, providing adjustable sensitivity for both power and low voltage circuits including lighting, thermostats, and control systems.

Professional Features & Benefits

  • CAT IV 1000V Safety Rating: Provides maximum protection for professional electrical work in high-energy environments and industrial applications.
  • Adjustable Voltage Detection (5-1000V AC): Versatile sensitivity adjustment allows safe detection across power wiring and low voltage circuits with precision control.
  • Non-Contact Operation: Safely detects AC voltage without touching bare conductors, reducing risk of electrical shock and arc flash incidents.
  • Hot and Neutral Conductor Identification: Distinguishes between energized and neutral conductors for accurate circuit analysis and troubleshooting.
  • Wire Break Detection: Locates breaks in wires and cables, streamlining diagnostic procedures and reducing troubleshooting time.
  • C/US UL and CE Listed: Meets rigorous safety standards for professional electrical testing equipment with international compliance.
  • Low Battery Indication: Alerts users to battery status ensuring reliable operation and preventing unexpected power loss during critical testing.

Technical Specifications

  • Battery: (1) 1.5 V AAA
  • Frequency: 50 - 500Hz
  • Measurement Category: CAT IV, 1000V
  • Product Type: Adjustable, Non Contact
  • Standard: C/US UL Listed, CE Listed
  • Voltage Rating: AC V 5 - 1000

Professional Applications

  • Electrical Troubleshooting and Maintenance
  • Commercial and Industrial Facilities
  • Residential Electrical Service
  • HVAC System Diagnostics
  • Lighting Circuit Testing
  • Low Voltage Control Systems
  • Professional Electrical Contracting

Why Choose Greenlee Quality?

Greenlee delivers professional-grade electrical testing equipment with CAT IV 1000V safety rating and comprehensive C/US UL and CE listings. The GT-16 combines reliable non-contact detection technology with adjustable sensitivity controls, providing the precision and safety standards demanded by professional electricians and technicians.

Manufacturer Resources

Product Specs

Battery:
(1) 1.5 V AAA
Frequency:
50 - 500Hz
Measurement Category:
CAT IV, 1000V
Product Type:
Non-Contact Voltage Tester
Standards:
C/US UL Listed, CE Listed
Voltage Rating:
AC V 5 - 1000
Department:
Electrical
Product Subgroup:
Voltage Testers
Product Group:
Test & Measurement

Greenlee GT-16 – Frequently Asked Questions

1) Will the Greenlee GT-16 detect low voltage circuits like thermostats and door controls, or just 120/277V power wiring?
Both. The GT-16 covers 5 to 1000V AC, and its sensitivity is adjustable, so you can dial it down for thermostat wiring, lighting controls and other low voltage circuits, then back up for branch and feeder conductors. That adjustable range is the reason to pick it over a fixed-threshold pen tester that ignores anything under roughly 50V.
2) Is the GT-16 rated for work on a service entrance or main panel?
It carries a CAT IV 1000V measurement category, which is the rating for the origin-of-installation side: service entrances, meter sockets, outdoor drops and main service panels. CAT III-only testers are not rated for that location.
3) Is a non-contact detector like the GT-16 enough for lockout/tagout verification, or do I need a contact tester?
A non-contact detector senses the field around an insulated conductor, so it is a fast go/no-go check and a good first pass on troubleshooting, HVAC diagnostics and lighting circuits. It does not put probes on metal, so it cannot read an actual voltage value or confirm absence of voltage the way a contact voltmeter or two-pole tester does. Use the GT-16 for locating and identifying energized conductors, and a direct-contact instrument where your procedure calls for proving dead.
4) Does the Greenlee GT-16 meet the safety listings a commercial or institutional electrical spec usually calls for?
The GT-16 is C/US UL Listed and CE Listed, which covers both US and Canadian recognition plus European conformity. That is normally what an institutional or MRO spec wants to see on a test instrument before it goes into a tool crib.
5) Can the GT-16 tell me which conductor is hot and which is neutral?
Yes, hot and neutral identification is one of its functions, so you can sort out an unmarked or mis-wired pair without opening up a contact meter. It also locates breaks in wires and cables, which is the part that saves time on a dead lighting run or a buried control cable.
6) Will the GT-16 pick up voltage on a VFD or generator circuit that isn't running at 60Hz?
Its detection band is 50 to 500Hz, so standard 50/60Hz power is well inside range along with higher-frequency circuits up that far. Signals outside 50 to 500Hz are not within the detector's stated band, so don't rely on it for DC or very high frequency work.
7) What battery does the Greenlee GT-16 take, and does it warn you before it dies?
One 1.5V AAA cell runs it, and there is a low battery indicator so you know the unit is still live before you trust a no-voltage reading. Stocking AAA cells with the tester is worth doing if it lives in a service truck.
8) What is the exact part number to order for the Greenlee adjustable non-contact voltage detector?
Greenlee GT-16 is the manufacturer part number, and it ships as a single configuration, so there are no sensitivity, range or finish options to specify on the order.
How fast can I get the Greenlee GT-16 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 GT-16 come with a warranty?
Absolutely. The Greenlee GT-16 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 GT-16?
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 GT-16 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!