BSIDE AST01US Socket Tester GFCI Outlet Tester Automatic Electric Circuit Polarity Voltage Detector

Features: - With three indicators and detail explanation, it is easy for a newer to use it. Any user can quickly identify which of the wiring conditions is indicated by the 3 LED lights - Impact Resistant ABS housing makes the product more durable and product it from drop destroy - With one button controlling, the meter can quickly test socket if connects positive and negative pole as request and whether household power protection systems works well or not to ensure the household electrical safety - The tester incorporates a built-in light so it can also be used in the dark - Suitable for different occasions, is the detection office, school, laboratory, factory, residential, commercial buildings and other places of electricity safety and inspection and electrical maintenance of the best choice - One of the most popular testers by electricians, inspectors, technicians and homeowners Specifications: - Plug Standard: US Plug - Nominal voltage Un= 90-120V (AC) 50-60HZ - Rated residual operating current: 5mA - Earth resistance meet the standard - Size: 52.8x53x56mm - Weight: 51g Package Included: 1 x Receptacle Outlet Tester 1 x English User Manual Notes: - 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