1.Network Cable Tester          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-G          Remote tester: 1-2-3-4-5-6-7-8-G RJ45          1-2-3-4-5-6 RJ12          -2 3-4-5 RJ11          Following are abnormal connections:          If one cable, for example cable NO.3 is open circuited, the two NO.3 lights of the main tseter 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 conntected, 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-G          Remote tester: 1-4-3-2-5-6-7-8-G          If two cables are short circuited, neither of the corresponding lights is on of the remote tester while main tester remains unchanged. If three cables, including three, are short circuited, none of the corresponding liaghts is on.          If test patch panels or wall plate outlels, 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.          9V reduplicated battery is used in this tester. Battery is advised to change if any weak light oppears.( Battery is not included.)                                        2.Network cable clamp pliers          Portable style with perfect shape          It won't damage the shelled-wire and works with high efficiency          The mouth of the press-pliers is made of magnanic steel ,which is hard and durable          While using press-pliers,just insert the cystal top into its position and press it.          For 4,6,8poles mudular connection                    Feature：                                        1. There are three functions of stripping, cutting and pressing.          2. The tool seat head is made of all metal and has a long service life;          3. The handle is made of special material, non-slip, comfortable to use, strong hand feeling, and ergonomic design;          4. It saves time and effort, and improves the efficiency of crimping, so that the individual can easily complete the crimping.          5. The quality of the blade is good, which can ensure that the cut port is flat and free of burrs. The distance between the two metal blades is moderate. It can easily peel off the rubber of the twisted pair, but it is not easy to cut the network cable.          6. The shape and size of the crimping section are consistent with the crystal head, and it is not easy to be misaligned, which can better make the connection between the twisted pair and the crystal head firm.