Socket Tester AC 90-250V Outlet Tester Automatic Circuit Polarity Voltage Detector Breaker Finder HT107E Electrician Repair Tool 1. Smart socket tester: used to detect the wiring of sockets and ensure the safety of household electricity. 2. Reliable quality and high performance: ensure accurate and fast results. 3. Digital LCD display: The test results are directly displayed on the LCD screen, which is clear and easy to see, and there is no need to judge by yourself. 4. Voltage and frequency test: The voltage and frequency are displayed at the bottom of the LCD screen at the same time. 5. Other features: small size, light design, key operation, easy to use, plug and play. 6. Application: Useful tool for testing sockets in homes, offices, schools, factories, etc. parameter: Specification: Material: ABS Colour: Black Plug type: EU plug, US plug and UK plug, (optional) Packing weight: 100g.3.53oz Packing size: 10*10*10cm Package list: 1*Socket Tester 1*Manual Note: 1. Manual measurement, allow a small error of 0-1cm, thank you. 2. Due to the differences between monitors, the pictures may not reflect the actual color of the item. Please allow a small color difference.