SACN/CONT: Antiinterference cable locate; can directly connect to the network cable after locating. CONT: Test open, short, cross, etc for STP and UTP cables. Length: Measures the length of LAN cables; range 2.5 m to 200 m. POE: Detects the power supply cores and voltage of POE power supply equipment; both standard and nonstandard POE can be detected. Key benefits Quickly locate the correct cable path with antiinterference performance, reducing trial and error during installation or maintenance. Verify cable integrity by testing for open, short, and cross connections on both STP and UTP networks. Obtain accurate cable length measurements to aid in planning, routing, and documentation of the network layout. Assess POE readiness by detecting the power supply cores and voltage, supporting both standard and nonstandard POE devices. 23 practical use scenarios network installation and commissioning: locate the target cable, confirm connectivity, measure its length, and verify POE availability where applicable. Network troubleshooting: identify open or short circuits and miswiring in STP/UTP cables, and check POE power presence and voltage to diagnose issues. Site surveys and cable planning: map existing cable lengths and POE capability across a building to inform layout decisions and future upgrades.