• MS6812 cable tracker ideal for installing, debugging and maintaining telephone lines and other cables. • Detects continuity of cables and wires without damaging insulation. • Diagnoses break points and tracks cables using 1.5 kHz audio signals. • Identifies telephone line status: idle, ringing or off-hook. • Housing made of impact-resistant, anti-fouling and anti-static ABS. • Portable and lightweight design with carrying case included for extra protection. • Package includes transmitter, receiver, test leads, carrying bag and user manual. • Powered by 2 x 9V 6F22 batteries (not included).