If you want to get a tester to test your network， this NENGSHL Professional Computer Network Cable Tester Gray !#!amp!*! Green must be your great choice! The cable tester complies with CE security standard. With compact size and light-weight design， it allows you to easy detect any connectors， openings and crossed wires etc. Additional non-contact voltage detection provides user safety. High quality material and excellent workmanship guarantee its high performance. An honest helper for you!                                    Features             New and in a good working condition<br> Comply with CE security standard<br> Automatically detect good connectors， openings and crossed wires and so on<br> Low power consumption with auto power off function<br> Easy operation<br> A great helper to test network  <br>                                                            Specifications             Weight     3.95oz / 112g    <br> Color     Gray & Green    <br> Dimensions     (4.17 x 3.98 x 1.06)" / (10.6 x 10.1 x 2.7)cm (L x W x H)    <br> Testing Cable     RJ11， RJ45    <br> Power Supply     DC 9V Laminated Cell    <br> Power Consumption     25mA     <br>                                                             Package Includes            1 x Computer Network Cable Tester<br>1 x Manual<br>