Features Wire Tracing Traces RJ11, RJ45, cable or other metal wires (via adapters). Breakpoints can be easily and quickly located without opening the wire cover. This handheld cable test tool checks the continuity of wires. Network cable sorting: judge short circuit, open circuit, open circuit, crossover, test cable level, positive and negative polarity. Phone line detection status: Detect the working status of the phone line (idle, ringing, off-hook), and determine the TIP and RING lines. This instrument is a multifunctional handheld cable testing tool. Work perfect when RJ11 RJ45 cable is on power. It has a wide application with reinforced cable types and multiple functions. It is a nssary testing tool for telecommunication engineering, wiring engineering, and network maintenance person.   Features: -Wire Tracing Traces RJ11, RJ45, cable or other metal wires (via adapters). -Breakpoints can be easily and quickly located without opening the wire cover. -This handheld cable test tool checks the continuity of wires. -Network cable sorting: judge short circuit, open circuit, open circuit, crossover, test cable level, positive and negative polarity. -Phone line detection status: Detect the working status of the phone line (idle, ringing, off-hook), and determine the TIP and RING lines.   Specification: Brand: BSIDE Model: FWT11 Material: ABS Type: Measuring instruments Primary functions: Wire Line Finder Tracker Altitude: <2000m Anti-explosion rating: IP40 Distance of emitting signal: 300m or so Color: blue Emitter Size: 20*4*2.9cm/7.9*1.6*1.1in River Size:12.5*6.5*3.2cm/4.9*2.6*1.3in Weight: Approx.252g/8.9oz     Package List