PORTABLE ELECTRIC Advanced for detecting whether the socket's wire connection is correct. Compact size, lightweight, and convenient to use. Features a voltage backlight LCD display for testing voltage. PLUG & PLAY Designed with RCD/GFCI test button. One-click operation to check the working state of the leakage protector. Helps protect against the risk of electric shock. BRIGHT LED DISPLAY Light patterns are clearly labeled on the back of the device. Red LED indicators are visible in strong sunlight and usable in the dark for quick reading. 6 LED LIGHT PATTERNS Includes 6 easy-to-read indicators showing socket status: Correct, Open Ground, Open Neutral, Live/Neutral Reverse, Live/Ground Reverse, Missing Ground. WIDE APPLICATION Suitable for electrical maintenance testing, office sockets, power strips, and wall sockets in schools, laboratories, factories, and other environments. Ideal for home improvement and safety inspections, saving time in diagnosing socket issues. NOTE: The displayed voltage value is for reference only. Model: HT107D(EU) RCD Test: 30mA (EU Plug) RCD Working Voltage: 220V Operating Voltage: 90250V / 4565Hz Phase Voltage: 90250V / 4565Hz Leakage Voltage: 099V / 4565Hz Accuracy: (2.0%+2) Working Environment: 040C, 20%75% RH Storage Environment: -1050C, 20%80% RH Plug Type: EU Plug, compatible with countries such as Indonesia, Germany, France, Italy, and others. Color: Black Material: ABS Package Contents: 1 x Electric Socket Tester (other items not included) Note: Lighting and display differences may cause slight color variation between the image and the actual item. Measurement error allowance: 13 cm.