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Gardner Bender

Stop Shock II GFCI Outlet Circuit Analyzer Tester

Mfg.#
HGT6520
Sku#
271130
  • Single LED provides immediate indication of the wiring error, no need for a chart to carry, memorize or interpret!
  • Advanced ground testing circuitry precisely detects the required low resistance values
  • Hi-impact ABS housing withstands a 10 ft drop and offers a 250 pound crush rating
  • Bright 360 LED indicator light

* Estimated stock levels as of Sun, Mar 15, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

The Stop Shock II Circuit Analyzer makes it easy to test GFCI receptacles and determine the appropriate wiring correction needed. This GFCI tester uses advanced circuitry and a patent-pending proprietary design to precisely detect the required low resistance (less than 10ohms) on ground wire and provides a clear and easy-to understand single LED readout indication for correct wiring or Bad Ground, Open Neutral, Hot/GND Reverse, Hot/NEU Reverse and Open Hot wiring errors without the need to memorize or decipher a dual-indication chart. The Stop receptacles require GFCI test function to test outlets wired in parallel to GFCI circuits (bathroom, kitchen and outdoor receptacles require GFCI protection). Designed for the the jobsite this tester features Hi-impact ABS housinig with a 250 lb crush rating and the ability to withstand drops of up to 10 ft Backed by a lifetime warranty this tool will speed up the testing process and increase your productivity for years to come.

Specifications

General

Type Tester

Manufacturing Details
The following information is subject to change without notice

Country of Origin US
Prop 65 Warning Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
Shop USA Yes

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