Designed to improve immunity for reduced High Frequency (HF) nuisance tripping. providing increased compatibility with appliances and other electronics An outdoor outlet must be able to withstand the elements. Our weather-resistant GFCIs feature stainless steel strap and screws, UV stabilized plastics and a cold impact resistance face and buttons Continuously protects against electric shock & electrocution by interrupting power if a ground-fault is detected Required by the NEC for areas around the home within a close proximity to a water source Patented reset/lockout feature prevents reset if the GFCI is unable to respond to a ground-fault or if it isn't wired properly. Regularly conducts an automatic self-test to ensure safety LED indicator provides simple, intuitive feedback on power and protection status