Features: Ensure this safety and reliability of your electrical systems with our Socket Tester, designs to detect socket polarity, grounding position , and RCD functionality, preventing potential hazards like short circuits or electric shocks. Featuring a small design with easy to read display, this plugs and play tester provide instinctive diagnostics through multiple indicator light , making it simple to identify wiring issue . Ideal for electricians, homeowners, and office managers, this tool is essential for anyone responsible for maintaining safe electrical environment . Perfect for use in homes, offices, or industrial setting , the tester supports 110 250V voltage and 50 60Hz frequency, making it suitable for most international power systems. With its lightweight and easy carry design, you can effortlessly carry this reliable socket tester anywhere, ensuring excellent performances and peace wherever go . Specifications: Material: Plastic Size: about 3.5x6x6.7cm/1.37x2.36x2.63inch Package Includes: 1xSocket Tester note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.