Network Ethernet Cable LAN Tester Tracker Phone RJ45 RJ11 Telephone Wire USB Cable Analyzer Detector Line Finder Tools MS6812Type: Cable Tester Model Number: NW404 Package: Yes Brand Name: Nworld Item Type: Network Wire Tracker Tester Detect cable type: RJ45 RJ11 Cat5 Cat6 The router is running on the powersupply: YES Whether the line can be found in the pre: YES (Less than 48V) Cable measuring distance: 300m Network cable detection: YES Telephone job status detection: YES Check wire continuity: YES Test line level: YES positive and negative polarity: YES Anti explosion