GoolRC GFCI Outlet Tester with Voltage Display 90-250V Socket Tester Automatic Electric Circuit Polarity Voltage Detector Breaker Finder HT107E

✿ 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.
✿ PORTABLE ELECTRIC SOCKET TESTER --- Advanced socket tester for rapidly detecting whether the socket's wire connection is correct or not. Compact size, light weight and convenient to use. With voltage backlight LCD display for testing voltage.
✿ 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.
✿ 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.
✿ 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 inspection，It saves you lots of time in testing problems with sockets.