Feature:1. Can test telephone wire, network wire, power cable.2. Can test the line level, positive and negative polarity by using emitter only.3. Equipped with RJ11 cable and with BNC/RJ45 interface.4. Network wire checking function to judge normal/short-circuit/open-circuit/crossing and reverse connection.5. Easy and fast to locate the breakpoint without opening the wire\u0027s cover6. Includes low battery indication function.7. Protected by a bag, portable to carry.Specification: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:Can test telephone wire, network wire, power cable.Can test the line level, positive and negative polarity by using emitter only.Equipped with RJ11 cable and with BNC/RJ45 interface.Network wire checking function to judge normal/short-circuit/open-circuit/crossing and reverse connection. Easy and fast to locate the breakpoint without opening the wire's cover.Includes low battery indication function.Protected by a bag, portable to carry.Specifications:Material: ABSColor: Grey + BlueCompatible Connectors: RJ11, RJ45Short Circuit/Open Circuit Detection: YesDistance of the Emission Signal: >300mAltitude: less than 2000mClassification: IP40Safety Class: IEC61010-1 600 V CAT III, pollution class II.Power Supply: Emitter: 1 * 9V 6F22 Battery; Receiver: 1 * 9V 6F22 Battery (both NOT included)Operating Temperature: 0~40°C(32~104°F), ≤80%RHStorage Temperature: -10~50°C(14~122°F), ≤80%RHEmitter Size: Approx. 17.5 * 4.5 * 3.5cm / 6.89 * 1.77 * 1.38inReceiver Size: Approx. 12 * 4.8 * 3.4cm / 4.72 * 1.89 * 1.34inEmitter Weight: Approx. 75g / 2.65oz Receiver Weight: Approx. 67g / 2.36oz Package Size: Approx. 21.7 * 11.4 * 4.9cm / 8.54 * 4.49 * 1.93inPackage Weight: Approx. 270g / 9.52oz Package List:1 * Emitter1 * Receiver1 * RJ11 Cable1 * Crocodile Clip Test Line1 * Carry Bag1 * User Manual (English)Package List:1 * Emitter1 * Receiver1 * RJ11 Cable1 * Crocodile Clip Test Line1 * Carry Bag1 * User Manual (English)