The Milwaukee 2223-20 GFCI Receptacle Tester is the compact, professional-grade tool for electricians, maintenance techs, and homeowners who need quick, reliable verification of outlet wiring integrity. Plug in to standard 3-prong outlets to instantly diagnose common faults: open ground, open neutral, open hot, hot/ground reversed, hot/neutral reversed, and correct wiring. GFCI test button simulates ground fault to verify proper GFCI protection and trip function. Clear LED indicators provide easy-to-read fault codes, and the rugged over-molded housing withstands jobsite drops. Ideal for electrical inspections, remodels, new construction, home safety checks, and troubleshooting—your essential pocket tester for safe, code-compliant outlet verification without guesswork.

• Tests standard 3-prong outlets – detects open ground/neutral/hot, reversed polarity & more
• GFCI test button – simulates fault to verify GFCI trip & protection
• Clear LED indicators – instant, easy-to-read fault codes
• Rugged over-molded housing – withstands drops & jobsite abuse
• Compact design – fits in pocket or tool bag for quick checks
• No batteries required – plug-in operation for reliable testing
• Ideal for electrical inspections, remodels, new construction & home safety
• Milwaukee quality – accurate & trusted by professional electricians
• FREE Shipping!