All-in-One Network Cable Tester:Supports continuity test, length measurement, cable scan, PoE test, port flash, and NCV detection. Compatible with CAT5/5e/6/6a STP/UTP cables and RJ11 telephone lines. Essential for network installation and troubleshooting. Accurate Length Measurement (2.5200m):Quickly detect cable length and locate open/short circuits with ±1.6m accuracy. No remote neededjust connect one end and test. Ideal for identifying fault points in Ethernet cables. PoE Tester for Standard & Non-Standard Devices:Test PoE switches (560V DC), identify PSE type (AF/AT), and check power polarity and mode. Supports both standard (IEEE 802.3af/at) and non-standard PoE, including 8-pin power supply. Port Flash & NCV Non-Contact Voltage Detection:Locate target ports on switches/routers via slow flashing (3s interval). Use NCV mode to safely detect AC voltage (501000V) without touching live wiresenhances safety during installation. Built-in LED Lights & Complete Kit:Both emitter and recei