Description: Main function: This power socket tester is designed to test the power socket's polarity and electrical leak safety. Easy to use: Just connect this power socket detector to a power socket, it will test the socket and display the result. Voltmeter: This digital power socket tester can also test the power socket's voltage, more practical to use. LED screen: This power socket polarity detector features a digital display design that makes you can easily read it. Suitable place: This power outlet tester is a good fit for home, office, school, hotel, and anywhere with a power socket. Specification: Material: ABS plastic. Color: Show as picture. Size(LxWxH): Approx. 70x70x56.4mm/2.76x2.76x2.22 inch. Battery: 2x AA batteries(Not included). Suitable range: 90-250V, 50-60Hz. Electric leak detection: 10A/16A switched. Note: There might be a bit of color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes: 1 Piece Power Socket Tester(with User Manual).