Description
Greenlee GT-13 Non-Contact Voltage Detector
Verify live circuits quickly and safely without breaking insulation. The Greenlee® GT-13 Non-Contact Voltage Detector delivers fast, reliable AC voltage detection for electricians, HVAC techs, and facility maintenance pros.
Engineered with Greenlee’s patented automatic self-test feature, the GT-13 continuously verifies internal battery and antenna integrity so you never have to second-guess your tool's readiness. Dual audible and visual alerts trigger instantly upon detecting live 50V to 1000V AC voltage, making it simple to trace wiring, identify broken lines, and check circuit breakers, outlets, and light switches. Complete with a built-in bright LED flashlight and a CAT IV 1000V safety rating, it is built for tough, uncompromised job site performance.
- Broad Detection Range: Accurately senses standard AC voltage from 50V to 1000V AC (50/60 Hz).
- Automatic Self-Test: Continuous internal self-check ensures the antenna and circuitry are fully functioning before and during every test.
- Audible & Visual Indicators: Ultra-bright flashing red LED and intermittent tone signal live voltage even in noisy mechanical rooms.
- Integrated LED Flashlight: Illuminates dark electrical panels, junction boxes, and unlit crawlspaces.
- Battery-Saving Design: Automatic 5-minute shut-off preserves power; low-battery indicator prevents downtime.
- Certified Safety: Rated CAT IV 1000V for high-level transient surge protection.
Specifications
| Attribute | Specification |
| Brand | Greenlee® |
| Model / Part # | GT-13 (GT13 / 04718) |
| Voltage Detection Range | 50V – 1000V AC |
| Frequency Range | 50/60 Hz |
| Measurement Category | CAT IV 1000V |
| Indicators | Flashing Red LED & Audible Beeper |
| Worklight | Integrated Bright White LED Flashlight |
| Power Source | (2) 1.5V AAA Batteries (Included) |
| Auto Shut-Off | 5 minutes of inactivity |
| Warranty | Limited Lifetime Warranty |
Frequently Asked Questions
How does the automatic self-test feature work?
The Greenlee GT-13 features a patented self-test system that runs in the background, continuously testing battery power and circuit/antenna continuity so you know the tester is working reliably every time you approach a live conductor.
What voltage range does the Greenlee GT-13 detect?
The GT-13 detects AC voltages ranging from 50V to 1000V AC at 50/60 Hz, making it suitable for standard 120V, 240V, 277V, and 480V residential, commercial, and industrial electrical applications.
Can this tester detect DC voltage from batteries or solar panels?
No. The GT-13 is strictly designed to detect alternating current (AC) electrostatic fields. It does not detect direct current (DC) voltage from automotive systems or solar arrays.
What is the significance of the CAT IV 1000V safety rating?
A CAT IV 1000V rating means the tool is engineered to withstand severe high-voltage transient spikes, providing maximum user protection when working at utility connection points, service entrance equipment, and heavy industrial distribution panels.
Product Specifications
selling_points: |
✔️ Safe Detection: Accurately detects 50V to 1000V AC voltage without physical contact, featuring clear audible and visual indicators. ✔️ Automatic Self-Test: Verifies circuit integrity. |
category_bullets: |
• Greenlee GT-13 Voltage Detector Core: Non-contact voltage tester detects 50V–1000V AC with automatic self-testing, visual/audible alerts, and an integrated work light. • 50V–1000V AC. • Auto Self-Test. |
