✅【Innovative Dual Protection System】Features twin solenoid and double silicon controlled rectifier (SCR), ensuring an always-on GFCI protection to ground fault, which doubles the service life of GFCI as an added layer of protection. ✅【Patented Self-Test Every 5 Seconds】 This GFCI outlet automatically performs a self-test every 5 seconds—far more frequently than the UL standard of every 3 hours—to ensure it's always ready to protect against electrical shock. In the event of a ground fault, it cuts power in just 0.025 seconds, providing fast and reliable safety for your home. ✅【Durable and Ultra-Safe Design】Built with premium high-impact resistant thermoplastic materials. Endurance-tested over 6,000 times—twice the UL requirement. Features advanced safety features like 6kV surge protection, Reset-Disable, and Reversed Wiring Prevention to ensure long-lasting performance and maximum protection. ✅【Tamper Resistant & Weather Resistant】Our GFCI outlet boasts a tamper-resistant design to keep children safe. Engineered with advanced UV stabilization, this GFCI outlet withstands harsh outdoor conditions, including corrosion, temperature changes, and harmful UV rays. Perfect for outdoor use—pair it with a protective cover for even greater durability. ✅【UL Certified & 3-Year Product Support】ELEGRP GFCI outlets rigorously tested to meet or exceed UL943 & UL498 standards for safety and reliability. Backed by 3 years of product support, ensuring long-term performance and customer satisfaction. ELEGRP GFCI Outlet Outdoor, 15 Amp Self-Test GFI Electrical Outlet with Thinner Design, Weather & Tamper Resistant GFCI Receptacle, Ground Fault Receptacle w/Wall Plate, UL Listed, Grey, 2 Pack