Features: Smart socket tester: it can be used to detect the wiring of the socket to ensure the safety of household electricity. Digital LCD display without indicator light: the voltage and frequency test results are directly and clearly displayed on the LCD screen for easy viewing. Portable design, compact in size, plug and play. Compact ergonomic design, high impact resistance ABS shell, impact resistance and compreion rating are higher than industry standards. Wide range of applications: used to test power sockets in homes, offices, schools, factories, etc. Specifications: Material: ABS Size: 68x60 mm/2.67x2.36 in Plug Type: US/EU/UK for you to choose Measuring Voltage Range: 110V-220V Test Results Displayed as Following: Correct Miing Ground Miing Neutral Live Neutral Reverse Live Ground Reverse Live Ground Reverse & Miing Ground Package includes: 1 Piece Socket Tester Notes: 1.Please allow 1-2cm errors due to manual measurement. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.