Features: This is a multifunctional wire tracker, for telephone, network wire, power cable, etc.Integrated wiring network engineering with building monitoring line maintenance.Equipped with RJ11 and RJ45 cables and with interface on the transmitter.Easy and fast to locate the breakpoint without opening the wire's cover.Short-circuit/open-circuit detection and DC level testing function.A great tool for telecommunication engineering, internet bar, network maintenance, etc.Specifications:Item Name: Wire TrackerBrand: MESTEK Model: WT58DWorking Environment: 0℃ - 40℃, 20%-75%RHStorage Environment: -10℃ - 50℃, 10%-90%RHAltitude: ≤2000 metersDistance of Sending Signal: 0-300mBattery: 2x9V 6F22 (NotIncluded)Receiver: 190mm x 40mm x 23mm/7.48" x 1.57" x 0.91" (Approx.)Launcher: 140mm x 60mm x 25mm/5.51" x 2.36" x 0.98" (Approx.)Package list:1 * Receiver1 * Transmitter1 * RJ11 Connecting Cable1 * RJ45 Connecting Cable1 * User Manual1 * Line Finder Bag1 * Pair of EarphonesNotes:1. Please note that there is NObattery in the package.2. Due to the light and screen setting difference, the item's color may be slightly different from the pictures.3. Please allow slight dimension difference due to different manual measurement..