Features:PORTABLE ELECTRIC SOCKET TESTER --- Advanced socket tester for rapidly detecting whether the socket 39;s wire connection is correct or not. Compact size, light weight and convenient to use. With voltage backlight LCD display for testing voltage.PLUG PLAY --- Designed with RCD/GFCI Test Button, One Click to know the working state of the leakage protector. Perfect for protect your security against the risk of electric shock.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 also be used in the dark, making you read it fast.6 LED LIGHT PATTERNS --- With 6 easy to read indicators to indicate the state of the socket, easy to judge: Correct, Open Ground, Open Neutral, Live/Neutral Reverse, Live/Ground Reverse, Live/Ground Reverse, Missing Ground.WIDE APPLICATION - Widely used for electric maintenance testing, office sockets testing, power strips testing and wall sockets testing in school, laboratory, factory and other social field. Home improvement acceptance and safety inspectionIt saves you lots of time in testing problems with sockets.NOTE: Please Be Mind, The Displayed Voltage Value Only For Reference Specification:Color: BlackModel: HT107B(US)/HT107D(EU)/HT107E(UK) (Optional)Material: Flame Retardant ABSOperating Voltage: 90~250V/45~65HzPhase Voltage: 90~250V/45~65HzLeakage Voltage: 0~99V/45~65HzAccuracy: (2.0%+2)RCD Test: 30mA (EU/UK Plug)RCD Working Voltage: 220V20VGFCI Test: 5mA (US Plug)GFCI Working Voltage: 110V20VWorking Environment: 0 40, 20% 75%RHStorage Environment: -10 50, 20% 80%RHItem Size: 68 * 65 * 60mm / 2.7 * 2.6 * 2.4inItem Weight: 74g/2.6ozPackage size: 83 * 74 * 76gPackage Weight: 110gPacking List:1 * Electric Socket Tester