Featuring 2-speed design, this network cable tester can be adjusted freely according to your testing needs.This network cable tester is characterized by detachable design, which enables it to be separated to two parts to achieve long distance detection and bring you convenience.It is constructed of ABS material.The length of this product is 10.3cm, the width is 9.7cm and the height is 2.7cm. It is suitable for home use and wireman use.Item Name: Network Cable TesterMaterial: ABSPower Supply: 9V 6F22 Battery (Not Included)Interface End: RJ45+RJ11Features: High Precision, LED Indicator, PortableSize Details:L: 10.3cm/4.06", W: 9.7cm/3.82", H: 2.7cm/1.06"(Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Feature:Test of double-twisted cables: Switch on the power. (S is slow automatic grade, Mis manual.) Put cables into both main tester and remote tester. The lights of the main tester will turn on sequently form 1 to G.Main tester: 1-2-3-4-5-6-7-8-GRemote tester: 1-2-3-4-5-6-7-8-G RJ451-2-3-4-5-6 RJ11Following are abnormal connections:If one cable, for example cable NO.3 is open circuited, the two NO.3 lights of the main tester and remote tester will not turn on.If several cables are not connected, several lights will not turn on respectively. If less than two cables are connected, none of the lights is on.If two ends of a cable is disordered, for example NO. 2and NO. 4, then displays on:Main tester: 1-2-3-4-5-6-7-8-GRemote tester: 1-4-3-2-5-6-7-8-GIf two cables are short circuited, neither of the corresponding lights is on of the remote tester while main tester keeps unchanged. If three cables, including three, are short circuited, none of the corresponding lights is on.If test patch panels or wall plate outlets, two cables which can match each other (RJ45) will be connected to the tester.If test cables of the same axes, BNC turns on when the cable works.Package Includes:1 x Network Cable Tester1 x English User Manual