YOJOCK Outlet Tester with LCD Display – GFCI Detector, 90-250V, US Plug, CAT II 300V

Meet YOJOCK’s Outlet Tester, a compact tool built for quick, clear electrical diagnostics on 3-wire and GFCI protected outlets rated 90 to 250 volts. Its color LCD screen and six visual indicators translate complex wiring status into an immediate readout you can trust at a glance. The device also displays the actual voltage for each tested outlet, helping you verify power presence before performing any work.

Live color feedback is a standout feature. Green indicates a good wiring condition, while orange signals a wiring issue that may require attention. The combination of a vivid display and intuitive indicators makes it easier for both professionals and DIY enthusiasts to spot potential problems without taking apart outlets or using multiple tools.

Usage is straightforward. Simply plug the tester into the outlet and read the screen. In addition to wiring status, you can perform a one click GFCI test to check whether the trip mechanism is functioning as expected. This capability can be helpful when you want to confirm that a GFCI outlet provides the intended protection, or to quickly verify operation after wiring changes. Note that this test is different when used on non GFCI receptacles and you should observe proper precautions and conditions to avoid nuisance trips.

Safety and reliability are supported by certification and a solid warranty. The tester is designed for CAT II 300V and carries CE certification, reflecting safety compliance. YOJOCK also backs the product with a one year guarantee, underscoring a focus on dependable electrical diagnostics for homes, shops, and workspaces.

What you get and how it helps

• Quick check of outlet type and wiring status for standard 3-wire and GFCI outlets
• Real voltage readout to confirm power availability before tasks
• Clear color cues and compact form factor ideal for on site use
• One click GFCI test for rapid trip-function verification
• CE certified CAT II 300V safety with a manufacturer guarantee

Real-world scenarios often involve testing in tight spaces, dim corners, or busy outlets. The YOJOCK tester is designed for easy handling in those situations, offering fast results and a straightforward interpretation so you can decide next steps with confidence.

Whether you are installing a new appliance, upgrading outlets, or conducting routine maintenance checks, this tester provides a quick, noninvasive read of electrical readiness. Its voltage readout and color indicators help you act with clarity without unnecessary downtime.