Feature: 1. With good performance, designed for easy testing of 220V-230V sockets, simple and intuitive testing, clear display socket line status. 2. 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 physical safety. 3. With 3 easy to read indicators to indicate the state of the socket. 4. Easy to judge for correct, missing earth, live earth reverse, live neutral reverse, missing neutral. 5. Applicable to polarity test of power supply, leakage detection, live detection of ground wire. 6. Mini portable design, easy to carry and simple to use. 7. RCD test, can detect the wiring status of the socket quickly and accurately. 8. Widely used in the school, laboratory, factory and other social fields. Specification: Condition: 100% Brand New Item Type: Socket Tester Material: ABS Color: As shown in the picture Size: Approx.65x61x57mm / 2.6x2.4x2.2in Weight: Approx.73g/2.6oz Voltage: 220V Package List: 1 x Socket Tester Note: 1. Please allow 1-2mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.