Specifications:Material: ABSDisplay: LCDCable Types: STP/UTP 5E, 6E network cable, telephone cable, coaxial cable, USB cable.Tester Port: Tester RJ45 master port(M), tester LOOPBACK RJ45 port(L), RJ45 Scan(RJ45 cable tracing), Remote identifier: RJ45 port(R); The extra BNC and RJ11 converters are used to measure and check the continuity of coaxial cable and telephone line.Range: 11000mCalibration precision: 3%(0.5m or 1.5feet); (calibration cable>10m)Measurement Precision: 5%(0.5m or 1.5feet); (AMP, AT & T Class 5 cable)Display Unit: Meter and FootWorking Temperature: -10+60Working Humidity: 20%70%Battery(Not Included): Emitter: 1 * 6F22/9V battery, Receiver: 1 * 6F22/9V batteryEmitter Size: Approx. 17.5 * 8 * 4.3cm / 6.89 * 3.15 * 1.69inReceiver Size: Approx. 21.8 * 4.6 * 2.9cm / 8.58 * 1.81 * 1.14inAdapter Size: Approx. 8.6 * 3.4 * 2.6cm / 3.39 * 1.34 * 1.02inEmitter Weight: Approx. 223g / 7.88oz Receiver Weight: Approx. 92g / 2.3.25ozAdapter Weight: Approx. 34g / 1.22ozPackage Weight: Approx. 562g / 19.84ozPackage Size: Approx. 27.2 * 13.5 * 8.2cm / 10.7 * 7.9 * 3.7in This network cable tester can measure the cable length and the breakpoint. It is a necessary testing tool for telecommunication engineering, wiring engineering and network maintenance person.Features:Measure network cable length and determine the distance of open circuit, jumper wire, reverse connection.LCD display with backlight for easy reading in low light conditions.Includes 1pcs remote adapter, high working efficiency.Network wire checking function to judge normal/short-circuit/open-circuit. Easy and fast to locate the breakpoint without opening the wire's cover.Low battery indication and auto power off function.With 3 main functions of wire hunting, wire souring, and circuit status testing.Comes With Earphone: great for using in noisy environment or private search in crowded places to avoid interference.Wide Application: necessary testing tool for telecommunication engineering, internet bar, network maintenance, etc.