Data cable Analyzer for continuity checks. Allows easy identification of interruptions or interchanges.◾ for CAT 5/6 network and ISDN connection tests - USB AB cable tester - connection test with LED indicators for 8 single lines and screening - The following errors can be tested: SHORT NON PARALLEL NO CONNECTION - has RJ11, RJ45, and USB (type A) jacks - powered with 9 V batterie 6LR61 (not included) - incl. protective bag - Dimensions: 230 x 110 x 45 mm