Sigma's weatherproof one-gang universal GFCI receptacle kits provide protection for all of your outdoor activities. The tamper resistant, weather resistant (TRWR) GFCI receptacle provides maximum security against accidental electrical shock and durability for long-term outdoor performance. The corner hinge allows for vertical and horizontal installations and the cover is lockable to restrict unwanted access. The cover's rugged, die-cast construction prevents moisture penetration and is powder coated for corrosion resistance.