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: Wire locator can find wires in all common wiring systems and identify cables, with high sensitivity and accuracy, efficient and long lasting 3. WITH INDICATION: The wire locator tool features sound and viewing signal indications, 2 different sound signatures, and LED sound indicators for proximity lighting for easy identification 4. ABS HOUSING: The cable toner detector housing is made of ABS material, with good toughness, high strength, wear resistant and long service life 5. WIDELY USED: Wire locator transmitter set is widely used in cable and wire maintenance, measurement fields including line finding, short circuit testing, cleaning, busy, ring recognition, etc. Specification: Item Type: Cable Tester Model: 200EP Material: ABS Detector Battery: 1 x 9V 6F22 battery(not included) Receiver Battery: 1 x 9V 6F22 battery(not included) Input Impedance: 100M Ohm Probe Tip Resistant(minimum): Metal Tip: 0 Ohm Plastic Tip: 300 Ohm Depth Range: Approx. 50cm / 20in Maximum Cable Length: Approx. 500m / 1640feet Working Environment: NO or low voltage Maximum Current: ≤70mA Maximum Signal Voltage: 15Vp-p Application: For cable and wire maintenance. Measurement includes line locating, short circuit testing, clear, busy, ringing recognition. Package List: 1 x Detector 1 x Receiver 1 x Headphone 1 x User Manual 1 x Storage Bag