Specifications:Material: ABSDisplay: 2.8 inch LCD color screen(effective visible area 60x45mm)Cable Types: STP/UTP cat5e, cat6, cat6a, cat7 network cable, telephone cable, coaxial cable and common metal wires connected with alligator clip.Testing Device Interface: Main unit: RJ45(M), RJ45(S), POE/PING, RJ11, BNC ports. Remote identifier: RJ45, RJ11, BNC portsRange: 11500mCalibration precision: 2%(0.5m or 1.5feet); (calibration cable>50m)Measurement Precision: 3%(0.5m or 1.5feet)Display Unit: Meter, Foot, YardsWorking Temperature: -10+60Working Humidity: 20%70%Built-in Lithium Battery: Emitter: 1 * 3.7V 1800mAh; Receiver: 1 * 3.7V 1800mAhEmitter Size: Approx. 17.3 * 9.2 * 3.4cm / 6.81 * 3.62 * 1.34inReceiver Size: Approx. 18.3 * 5.8 * 3.5cm / 7.2 * 2.28 * 1.38inAdapter Size: Approx. 10.6 * 3.2 * 3.0cm / 4.17 * 1.26 * 1.18inEmitter Weight: Approx. 207g / 7.32oz Receiver Weight: Approx. 120g / 4.24ozAdapter Weight: Approx. 37g / 1.32ozPackage Weight: Approx. 776g / 28.38ozPackage Size: Approx. 27.2 * 20 * 9.3cm / 10.7 * 7.9 * 3.7in This tester is a multi-functional wire tracker, including cable emitter and receiver. It has functions like telephone wire tracking, network wire tracking, power cable tracking, network wire check, etc. and it produces fast and accurate measurements. It is a necessary testing tool for telecommunication engineering, wiring engineering and network maintenance person.Features:New design of digital signal with strong interference and no noise, easy & convenient to operate.TDR theory to measure cable length and provide distance to fault information.Provides full cable testing on different category network, coaxial, or telephone cable.Tone trace cable with complete AC Interference Rejection, much easier than other tracers on markets.With PING & POE testing and calibration functions.Big LCD color screen for easy reading.With NCV non-contact induction pen function.50 groups of data records storage and data transmission function.Low battery indication and auto power off function, rechargeable lithium battery for more efficient work.