100% brand new and high quality Functions: Smart Socket Tester: it can be used to detect the wiring of the socket to ensure the safety of household electricity. Digital LCD without indicator light: test results voltages and frequencies are directly and clearly displayed on the LCD screen for easy viewing. Portable design, compact size, plug and play. Compact ergonomic design, high impact resistance ABS Shell, impact resistance and compression reduction are higher than industry standards. A wide range of applications: used to test high power sockets in homes, offices, schools, factories, etc. Features: Material: ABS. Size: 68x60mm / 2.67x2 .36V Plug type: US/EU/UK for you to choose Voltage measurement range: 110V-220V Test results are displayed as follows: Correct Missing ground Neutral Live Neult Revers e Living earth back Living earth back and missing earth Package includes: 1 piece Notes: 1. Please allow 1- 2cm error due to manual measurement. 2. The difference between different monitors, the picture may not reflect the actual color of the item.