The ZOYI ZT-E10 Socket Tester is a smart tool for checking electrical safety. It features RCD testing to ensure proper functionality of residual current devices and wiring indication to identify missing or faulty connections. The device also displays voltage between live, neutral, and earth wires, and includes non-contact voltage (NCV) detection for added safety. Its colored LED screen provides clear and easy-to-read results. Compact and user-friendly, the ZT-E10 is perfect for homeowners and electricians to verify socket wiring and electrical safety