Features: Find wire on all types of connected operating Ethernet switch/router/PC terminal Directly insert phone wire with RJ11 plug into the RJ11, RJ45 plug into the RJ45 socket of the wire trackers emitter Push DIP switch of emitter to position of SCAN/TEST then wire finding indicator status flashes meaning normal work of emitter Press down the inching button Use the probe of receiver to find target wire at the other end During testing, function switchover button can be pressed for switchover of dual-tone Finding function: for telephone, network and electric wires Collation function Open or short circuits testing functions DC level testing function Telephone line signal detect Low voltage alarm function Earphone function Spotlight function Telecom post offices/net bars/telecom engineering companies/network engineering companies/ power supplies/army and other departments requiring wire Specification: Signal transmission format: Multi-frequency pulses Signal output level: 8Vp-p Signal transfer distance: 3Km Dimension: Transmitter:approximate.140x75x30mm/5.51x2.95x1.18inch Reviver:approximate.220x48x32mm/8.66x1.9x1.26inch Power: DC 9V Battery (not included) Package Included: 1 X PN-F Wire Tracker Toner and Probe Network Cable Tester 1 X RJ11 telephone cable 1 X Cable with crocodile clamp 1 X RJ45 network cable 1 X earphone 1 X User Manual