Quick and easy check for cable continuity, miss-wiring, Open, short, straight-through or cross pinning whatever the cable was installed or not.Features• Tests 4 types of cables: RJ11/ RJ45/ USB/ BNC.  • Test distance：1500 ft.  • Multiple LEDs give a clear indication :Open/short wiring,Connected wires,No connection/ non-parallel connection.  • Simple one-button test.  • Detachable module for testing remote points.Set Includes1 x Handheld 4-in-1 Professional Network LAN Cable Tester for RJ45 RJ11 BNC UTP SKU: 269 Categories: Cable Testers, Network Tester Brand: AZInstruments