Features: 1. Bright LED Display: Light patterns are well labeled on the back of the device itself. The Red LED indicators can be light up clearly even in strong sunlight. With built-in light so it can also be used in the dark, making you read it fast. 2. Portable Design: Compact size, lightweight and convenient to use. With voltage backlight LCD display for testing voltage. 3. Electric Socket Tester: Advanced socket tester for rapidly detecting whether the socket39;s wire connection is correct or not. Design with RCD/GFCI Test Button, for correct wiring and RCD/GFCI trip function. It can test the protection system to ensure the household electrical safe. 4. 7 LED Light Patterns: With 7 indicators to indicate the states of the socket, easy to judge: Correct, Open Ground, Open Neutral, Live/Neutral Reverse,Live/Ground Reverse, Open Live Live Neutral Reverse. 5. Extensive Use: Widely used for electric maintenance testing, office sockets testing, power strips testing and wall sockets testing in office, school, laboratory, factory and other places. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow slight deviation due to manual measurement. 2. Objects may have Logo, if you want to know, please contact us. If you mind, please do not bid. Specification: Type: Outlet Tester Color: as picture shows Material: Flame Retardant ABS Voltage: 48V-250V 45-65Hz, RCD Test: ＞30mA, RCD Working Voltage: 220V±20V GFCI Test: ＞5mA US Plug, GFCI Working Voltage: 110V±20V Voltage Measurement: 48V250V / 4565Hz, Accuracy: ±2.02 Working Environment: 0 40C, 20 75RH Storage Environment: -10 50C, 20 80RH Safety Rating: EN61010-1,-2-030, EN61326-1CAT II 300V Item Size: 62 * 65 * 55mm / 2.4 * 2.6 * 2.2in Package List: 1 x Outlet Tester 1 x English manual