Main Features:<br />Quickly and easily checks network cable<br />Requires one 9V PP3 battery ( not included )<br />Tester detects if wires are connected correctly<br />Test your twisted pair， Straight， Crossover， Cat 5 / Cat 5e / Cat 6 / UTP cables with RJ-45 connectors<br />Insert the battery， turn on the tester， and connect one end of the cable to the master side and the other end to the remote side<br />The lights indicate problems ( if any ) with wires in the cables<br />Ideal for IT enthusiasts who wish to make their own network cables<br /><br />    Specifications<br />General<br />  Material: Plastic                                                  <br />                        Type: Measuring instruments                                                 <br />Specification parameter<br />  Primary functions: Tester detects if wires are connected correctly                                                  <br />                        Features: Quickly and easily checks network cable                                                  <br />                        Scope of application: Home appliance， Office， Industrial                                                 <br />Weight and Size<br />  Product Weight: 0.113 kg                                                  <br />                        Package Weight: 0.199 kg                                                  <br />                        Product Size: 10.5 x 10.0 x 2.5 cm / 4.13 x 3.93 x 0.98 inches                                                  <br />                        Package Size: 18.5 x 11.1 x 3.5 cm / 7.27 x 4.36 x 1.38 inches                                                 <br />Package Contents<br />  Package Contents: 1 x Network Cable Tester， 1 x Leather Bag                                                 <br /><br /><br /><br />                                                                                            <br />