Features: _x000D_ 100% Brand new and high quality_x000D_ _x000D_ The product is a socket detector, used for socket connection status test, RCD leakage switch test, GFCI test (US gauge) _x000D_ Easy to operate, quickly check the safety of the socket connection _x000D_ Exquisite divisional design, test result display lights, double layer insulation protection, reference for test results, electrical leak-proof test button_x000D_ _x000D_ Applied in electrical maintenance testing,office electricity safety testing,home improvement electrical safety testing ,test wall sockets _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Brand: Bside _x000D_ Plug Standard: EU Plug_x000D_ _x000D_ Rated voltage Un= 220-250V (AC) 50-60HZ (EU Plug) _x000D_ Rated residual operating current: 5mA _x000D_ Earth resistance: Earth resistance meet the standard _x000D_ Size: 58*53*53mm/2.28*2.09*2.09in_x000D_ _x000D_ Weight: 61g _x000D_ _x000D_ Package Includes:_x000D_ 1 x Bside AST01ER Outlet Tester _x000D_ _x000D_ 1 x English User Manual _x000D_ _x000D_ _x000D_ Notes:_x000D_ Socket tester display "Correct" means the pole is connected correctly, but does not means resistance value is passed designation standard. Only passing "Creeping Switch Test", it can finally obtain the earth resistance value to test whether the Protection System works well or not. To ensure your safety, don't make the insert out of shape to affect the test result