Leviton SmartlockPro Slim GFCI 20A Weather- & Tamper-Resistant Receptacle White with Self-Test and LED

Leviton SmartlockPro Slim GFWT2-W is a self-testing, weather- and tamper-resistant 20A GFCI receptacle with a slim profile and status LED for reliable ground-fault protection.

This slim-profile GFCI outlet from Leviton combines automatic self-test monitoring with weather- and tamper-resistant features to deliver continuous ground-fault protection in indoor or protected outdoor locations. Built to the latest UL self-test standard, the SmartlockPro automatically runs internal checks so the device can confirm readiness without user intervention. Its shallow depth and back/side wiring options make installation faster in tight electrical boxes, while the patented reset lockout helps ensure the outlet cannot be returned to service if a malfunction is detected.

How does the SmartlockPro Slim verify it will work when needed?

The outlet performs periodic automatic internal tests to verify its ground-fault trip capability, reducing reliance on manual testing. During self-test sequences, the device still provides continuous protection and will trip on an actual ground fault.

• Automatic UL-compliant self-test cycles
• Continuous protection during self-tests
• Patented reset lockout disables reset if device fails

What installation and wiring options does this GFCI offer?

Leviton designed the GFWT2-W with a slim, shallow housing to fit most wall boxes, including tight or shallow enclosures. The unit supports both back and side wiring and accepts 20A feed-through connections for downstream protection.

• Slim depth for easier fit in shallow boxes
• Back and side wire terminals for flexible installation
• 20A feed-through terminals to protect downstream outlets

How can I tell the device’s status at a glance?

An integrated monochromatic LED provides clear, intuitive feedback on power and protection status, and it indicates line/load reversal if wiring is incorrect. This visual indicator makes troubleshooting faster for electricians and homeowners alike.

• LED shows power and protection condition
• Indicates line/load reversal for safer diagnostics
• Monochromatic display for consistent visibility

Why choose this model for high-frequency electronic environments?

The SmartlockPro Slim includes improved immunity to high-frequency (HF) interference to reduce nuisance tripping from modern electronics and appliances. That compatibility helps maintain reliable operation in spaces with motor drives, lighting controls, or sensitive electronics.

• Designed for reduced HF nuisance tripping
• Better compatibility with appliances and electronics
• Maintains service continuity where interference is present

Who this is for: Installers, electricians, facility managers, and homeowners who need a compact, reliable GFCI with automatic self-testing and clear status feedback will appreciate the Leviton SmartlockPro Slim. It’s ideal where space is limited, downstream protection is required, or environments demand fewer nuisance trips—such as kitchens, garages, covered outdoor outlets, workshops, and commercial spaces. Note: wallplate/faceplate is sold separately; follow local electrical codes and consider professional installation if unsure about wiring.