• Ideal for Cable Installation & 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 & 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 & 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 2.6 cm • Emitter size: 14.5 x 3.5 x 2.5 cm Package included: • 1 x Emitter • 1 x Receiver • 1 x Storage Bag