1、Receptacle Tester: The outlet tester can carry out socket connection status test, voltage status test, leakage protection switch test, etc. 2、Simple in Testing: Having connected to the tested socket, the receptacle tester can auto finish most of the tests and show the results. 3、Clear LCD Display: Supports red and white 2 color backlight, the LCD display will largely simplify your circuit testing and maintenance. 4、Wider Application: Can be widely used for electrician wiring in public places, new house lines, daily household electricity use and so on. 5、Convenient Carry: Comes with a compact size and a light weight as well, this socket tester is very convenient to carry for outdoor usage. Item Type: Outlet Tester Material: ABS Battery: 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 Minutes Working Temperature: 0℃ - 40℃ Working Humidity: <85% RH, no condensation. 1 x Outlet Tester 1 x Screwdriver 1 x User Manual 1 x Storage Bag