Features: Good Performance:Designed for easy testing of 220V-230V sockets, simple and intuitive-testing, clear-display socket line-. When the trip-protection button is pressed, the circuit does not jump-off, indicating that the-line is out-of order, the instrument itself is automatically protected, will not be damaged, providing personals safety. Detect whether neutral, live- and earth wire is connect correctly and to indicate which wire is missing with clear-light pattern. With 3 easy to read indicators to indicate the state of the socket, easy to judge: Correct, Missing Earth, Live- Earth Reverse, Live- Neutral Reverse, Missing Neutral. Polarity- test of power-supply, leakage detection, live- detection of ground wire. Specifications: Material:PC Plug:EU,US Color:Black,White Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Outlet Tester