Multi-Function: Continuity, wire mapping, length measurement, and fault location in one device .
- Tone Tracing: Locates cables within bundles or walls using a probe/receiver kit .
- PoE & NCV: Detects PoE voltage/type and non-contact AC voltage for safety .
- Connector Support: Typically RJ45, RJ11, BNC, and sometimes USB .
- Display & Alerts: LCD screen or LED indicators; audible tone and built-in flashlight
