Converts extension cords, tools & equipment to add GFCI protection. The user attachable plug is ideal for existing equipment without GFCI protection, the male connector can be removed and the GFCI plug easily attached to equipment-Feet cord. Applications include: pressure washers, drain snakes, floor cleaners, industrial appliances, power tools, pumps, boat lifts and extension cords. Rainproof rated for outdoor use. To prevent unmonitored equipment startup, manual reset is required after GFCI trip and power outage. Available with yellow or black case. Grounded neutral 4 Ohms typical. Voltage surge withstand 3kv ring wave test and 4kv/2kA surge immunity test. Radio frequency noise susceptibility operates within normal limits with 0.5-Volt injected on power line 150kHz-230mHz. Six times rated overload current. Effect of 10 Amp turn DC Shock on ground fault trip 5-Percent maximum trip level variation. Insulation voltage 1500 VRMS-1 Min. Mechanical power on indication.