"Features:Brand new and high quality.This instrument is designed to identify and trace wires or cables without damaging the insulation; you can also use it in checking for short circuit and locating open circuit and so on. In addition， it can also be used to identify some states of telephone.Designed for use with telephone lines， alarm cables， computer cables， intercom lines， speaker wires， and thermostat wiring Scanning Function - Find out working wire (networking cables， phone lines， coaxial cable， buried cable and even cable behind wall) Cable Tester Function - Check the working state of each wire.Circuit State Test Function - Test if the circuit is working properly， or if there is a open/short circuit.Cable Crimper:Material: metal and plasticHard and durable enough to crimp the net cables for using magnetic steelThe mouth of the press-pliers is made of high quality steelIt won\'t damage the shelled-wire when crimpingCable Tester:Test correspondingly double-twisted cables 1， 2， 3， 4， 5， 6， 7， 8 and GroundCapable to judge wrong connection， short circuit and open circuitCable Tester for RJ11， RJ45 etcIt can easily clarify cable， continuity， open and shortAuto scanning function for rapid testingGrounding TestBuild in power switch for power savingOperate with one 9V battery (Not Included)Network Punch down Impact Tool:Blades precisely inserts and economically trim wireDurable punch down tool， makes networking installation all that easyThe only tool you\'ll ever need to add， change or remove connectionsA specially-designed wire hook removes terminated conductorsA blade helps to easily remove the blocks from back mount framesThis is a punch down tool for putting wires into sockets， patch panels or outletsSpecially designed tool for terminates and trims wires with one low-impact punch， bring new ease and speed to all of your installationsSize: 26cm x 18cm x 5cm."