PORTABLE ELECTRIC -- Advanced for detecting whether the socket's wire connection is or not. 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 labeled on the back of the device itself. The Red LED indicators can be 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 : , 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, and other social field. acceptance and safety inspection,It saves you lots of time in testing problems with sockets. NOTE: Be Mind, The Displayed Voltage Value Reference Model: HT107D(EU) Operating Voltage: 90~250V/45~65 Phase Voltage: 90~250V/45~65 Leakage Voltage: 0~99V/45~65 Accuracy: (2.0%+2) RCD Test: 30mA (EU Plug) RCD Working Voltage: 220V20V Working Environment: 0 ~ 40, 20% ~75%RH Storage Environment: -10 ~ 50, 20% ~80%RH Plug Type :EU Plug,it applies to Indonesia, , , , and so on. Colour:Photo Color Material:ABS Size:about 68 x 65 x 60mm Package Contents: 1 x Electric Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.