This product is a multi-functional handheld cable testing tool. It has wide application with reinforced cable types and multiple functions, which is a necessary testing tool for telecommunication engineering, wiring engineering and network maintenance personnel.                                                                              <br />Wire track<br />Directly track wire type: RJ45,RJ11<br />Track other wire through the attachment<br />sequence collation<br />Open circuit, short circuit, detection of cable line sequence<br />Network wire collation<br />Test device used with UTP (Unshield Twisted Pair) and STP (Shield twisted Pair) wiring<br />Tests for open circuits, shorts, miswires, reversals, and split pairs<br />Allow one person to test T568A, T568B, 10Base-T, and Token Ring<br />DC level test<br />DC level test<br />telephone line test<br />Identify the state of working telephone line(clear,ring,busy)<br />Continuity<br />Judge continuity of the cables or wires<br />Switch port collation<br />detection switch connected condition<br />General<br />Power Supply  <br />Receiver:1 x 9V 6LR61 Emitter:6x1.5V AAA LRO3<br />CE CAT.III 600V RoHS<br /><br />Package Includes:<br />Bare Metal * 1<br />Instructions * 1<br />Battery * 1<br />Test line * 1<br />Headphone cable * 1<br />Meter cloth * 1<br /><img src="http://img6.eachbuyer.com/x9/p100/eb03589_4.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb03589_5.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb03589_6.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb03589_7.jpg" / noproxy>                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb03589_8.jpg" / noproxy>