An electrical outlet tester, also known as a receptacle tester, is a simple device used to quickly check the wiring and functionality of electrical outlets or receptacles. It typically consists of a small, handheld unit with a series of indicator lights and/or a display that provides information about the status of the outlet being tested. ### Key Features: 1. **Design**: Outlet testers usually have prongs that can be inserted directly into the electrical outlet.
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