•[Ideal for Cable Installation and Maintenance]Perfect for installing,debugging,and maintaining telephone lines and various other wires or cables. •[Non-Damaging Cable Detection]Detects cable continuity without causing any damage to the insulation,ensuring safe use. •[Cable Tracking and Breakpoint Diagnosis]Easily track cables and wires and diagnose break points for efficient repairs. •[Tone Signal Detection]Receives tone signals on cables or wires,including telephone lines,to identify the state of the connection. •[Dual Tone Functionality]Sends a single solid tone or a dual alternating tone to the cables,helping with precise identification and tracking. •[Portable and Professional Tool]Includes an emitter and receiver with a convenient carrying bag,making it a professional and portable tool for wiremen. Specifications: •Send tone frequency: 1.5 kHz •Receive frequency range: 100 - 300 kHz •Power supply: 6F22 (9V) Battery (Not included) •Receiver size: 23.8 x 4.3 x 2.6cm •Emitter size: 14.5 x 3.5 x 2.5cm Package included: •1 x Emitter •1 x Receiver •1 x Storage Bag Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin