YOJOCK Outlet Tester with LCD Display — 90-250V, GFCI Receptacle Detector, CAT II 300V

Overview

The YOJOCK Outlet Tester is a practical companion for both professional electricians and DIY enthusiasts. It works with standard 3‑wire outlets and GFCI‑protected 90–250V AC outlets, providing fast, at‑a‑glance results right from the outlet you’re testing. The vibrant color LCD screen, paired with a series of indicator lights, delivers clear feedback about wiring status and voltage, so you can move on to the next task with confidence.

What you’ll see and what it means

The LCD display uses a simple color code: Green indicates a good, properly wired outlet; Orange flags wiring problems. In addition to status, the device shows the actual voltage measured at each tested outlet, helping you verify operation without guesswork. It also highlights one of the six common wiring issues with an accompanying indicator, so you can identify potential faults quickly.

This tester is designed for effortless use: just plug it in and read the results. The bright LED indicators ensure readability even in dim environments, and the compact form makes it easy to carry between work sites, homes, or rental properties.

GFCI testing at a tap of a button

One‑button GFCI testing lets you verify trip functionality on GFCI outlets. If the receptacle trips, you gain reassurance that the leakage protection is active. Note that the GFCI test should be performed under proper wiring conditions and with caution on standard receptacles to avoid unintended trips.

Safety, standards, and warranty

Built to CAT II 300V standards and CE certified, this outlet tester emphasizes reliability and safety in everyday diagnostics. It comes with a one‑year guarantee, making it a sensible addition for maintenance personnel, inspectors, and homeowners alike.

Why it fits your toolkit

• Quickly assess wiring status on both standard and GFCI outlets
• See real voltage readings at a glance
• Identify one of six common wiring issues without complex setup

• One‑button GFCI test for trip verification
• Clear color LCD display plus LED indicators for easy reading
• CAT II 300V safety certification and a 1‑year guarantee

Whether you’re diagnosing a troublesome outlet, preparing a site for a wiring upgrade, or simply performing routine checks, the YOJOCK Outlet Tester offers a practical, non‑destructive way to gather actionable information and guide your next steps.