features 1Receptacle Tester: The outlet tester can carry out socket connection status test, voltage status test, leakage protection switch test, etc. 2Simple in Testing: Having connected to the tested socket, the receptacle tester can auto finish most of the tests and show the results. 3Clear LCD Display: Supports red and white 2 color backlight, the LCD display will largely simplify your circuit testing and maintenance. 4Wider Application: Can be widely used for electrician wiring in public places, new house lines, daily household electricity use and so on. 5Convenient Carry: Comes with a compact size and a light weight as well, this socket tester is very convenient to carry for outdoor usage.SpecificationItem Type: Outlet TesterMaterial: ABSPlug: EU Plug 220VBattery: 3 x AAA battery, shipped without battery. Working Height: Approx. 2000m / 6561.68ft, maximum. Display: 2 color backlight LCD, red and white. Automatic Shutdown: About 5 MinutesWorking Temperature: 0 - 40Working Humidity: