Feature: 1. Polarity Voltage Detector: Easy to use. detect whether neutral, live and earth wire is connected correctly and indicate which wire is missing with clear light patterns. 2. Voltage Tester: Compact size, portable design, one key operate, easy to use, just plug and play. 3. Outlet Finder: It tests your conservation system to ensure the household electric safety, protecting your security. 4. Circuit Finder: Versatile tester checks power outlet sockets for correct wiring, easy to use, just plug it directly into the socket. 5. Wide Application: Suitable for office sockets testing, electric maintenance testing, power strips testing, etc. Specification: Voltage detector widely used in laboratories, factories and other social areas for electrical maintenance testing, office socket testing, power socket testing and wall socket testing. Specifications: Material: ABS Security Level: EN61010-1, -2-030, EN61326-1, CAT. III 600V Item Size: 61 * 65 * 55mm / 2.40 * 2.56 * 2.16in Item Weight: 50g / 1.76oz Package Weight: 71g / 2.50oz Package Size: 13.5 * 10 * 7cm / 5.31 * 3.94 * 2.76in . Package List: 1 * Socket Detector