The Bside FWT11 Multi-functional Handheld RJ11 RJ45 Cable Telephone Wire Tracker Tester is a comprehensive cable tester that has wide applications in communication engineering、 wiring、 and network maintenance. It accurately tracks RJ45 and RJ11 cables and identifies open circuit、 short circuit、 miswire、 reversal、 split pair、 and cable sequence. Plus、 it can identify the state of working telephone line (clear、 ringing、 busy) and check continuity of cables and wires. Handheld design makes it easy to carry. Click and get one now! It surely is worth your investment!                                    <p>Features</p>            <UL><LI>Wide applications in communication engineering、 wiring、 and network maintenance</LI><LI>Accurately track RJ45 and RJ11 cables、 use with adapters to track other metal wires</LI><LI>Quickly identify open circuit without peeling cables</LI><LI>Detect short circuit、 miswire、 reversal、 split pair、 cable sequence、 etc.</LI><LI>Identify the state of working telephone line (clear、 ringing、 busy)</LI><LI>Check continuity of cables and wires</LI><LI>Handheld design、 easy to carry</LI></UL>                                                            <p>Specifications</p>            <TABLE class=ke-zeroborder border=0 cellSpacing=0 cellPadding=0 width="100%"><TBODY><TR><TD width=131>Material</TD><TD width=365>ABS</TD></TR><TR><TD width=131>Dimensions</TD><TD width=365>(8.07 x 1.77 x 1.18)" / (20.5 x 4.5 x 3)cm (L x W x H)</TD></TR><TR><TD width=131>Weight</TD><TD width=365>7.05oz / 200g</TD></TR><TR><TD width=131>Color</TD><TD width=365>Blue !#!amp!*! Black</TD></TR><TR><TD width=131>Operating Temperature</TD><TD width=365>0→- 40→、 Max 80% Relative Humidity (Non-Condensing)</TD></TR><TR><TD width=131>Storage Temperature</TD><TD width=365>-10→-50→、 Max 80% Relative Humidity (Non-Condensing、 Battery Not Included)</TD></TR><TR><TD width=131>Altitude</TD><TD width=365>!#!lt!*!2000m</TD></TR><TR><TD width=131>Anti-explosion Rating</TD><TD width=365>IP 40</TD></TR><TR><TD width=131>Distance of Emitting Signal</TD><TD width=365>300m or So</TD></TR><TR><TD width=131>Emitter</TD><TD width=365>6F22/9V</TD></TR><TR><TD width=131>Receiver</TD><TD width=365>6F22/9V</TD></TR></TBODY></TABLE>                                                            <p>Package Includes</p>            <UL><LI>1 x Transmitter</LI><LI>1 x Receiver</LI><LI>2 x Test Line</LI></UL>