The PCE 9434152 is a 16A 5-pin 6h 400V diagnostic plug featuring multiple built-in LED indicators for comprehensive testing of three-phase industrial power connections. Designed for professionals, it provides real-time diagnostics of rotating field direction, phase presence, neutral, and earth continuity. Lightweight and easy to use, this tool is essential for electricians working on CEE installations in workshops, construction sites, or industrial settings.