Feature: 1. MAIN FUNCTIONS: This cable tester can be used to diagnose common problems in telephone, data, internet, voice, security and communication cables. 2. HIGH PERFORMANCE: Can trace wire and identify cables in all common wiring systems, which has high sensitivity and accuracy, efficient and durable. 3. WITH INDICATION: Features audible and visual signal indication, 2 different tone signatures and LED tone indicator proximity lighting for easy identification. 4. ABS SHELL: The cable toner detector shell is made of ABS material, which has good toughness, high strength, wear resistance and long service life. 5. WIDE APPLICATION: Widely used for cables and wires repair, measurement areas include line tracing, short circuit testing, clear, busy, ringtone recognition, etc. Specification: Item Type: Wire Tracer Kit Model: 200EP Material: ABS Battery: 9V 6F22 battery x 1 (battery not included) Application: Widely used in the maintenance of cables and wires. Measurement areas include line tracing, short circuit testing, clear, busy, ring recognition. Gain: 30 dB Input Impedance: 100MOhm Probe Tip Resistance (Minimum): Metal Tip: 0 Ohm Plastic Head: 300 Ohm. Package List: 1 x Detector1 x Receiver1 x Test Head1 x User Manual1 x Storage Bag Note: Do not test the cable while it is powered.