This new cable finder works acoustically and provides a fast and cost-effective solution for finding voltage-free lines in house installations, testing telephone lines and identifying individual cables / wires or performing a continuity test. With the transmitter / sound generator, a carrier signal is modulated to an electrical conductor, which you can track with the receiver / amplifier with built-in speaker or via a headphone jack. You can also control the sensitivity using a rotary knob on the receiver to achieve the best possible identification even with coring wires. When connected to a telephone jack via the RJ-11 connector, the LED of the transmitter indicates the status of the active telephone line between "free", "busy" or "ringing". In addition, the transmitter has a continuity test, in which the LED lights up brightly when passing through and attenuates with increasing resistance. Product features: https://elecena.pl/product/18961827/p-3434-acoustic-wire-detector-with-tone-generator 2021-06-29 https://elecena.pl/product/18961827/p-3434-acoustic-wire-detector-with-tone-generator 2021-07-11 https://elecena.pl/product/18961827/p-3434-acoustic-wire-detector-with-tone-generator 2023-03-09 https://elecena.pl/product/18961827/p-3434-acoustic-wire-detector-with-tone-generator 2025-02-08 https://elecena.pl/product/18961827/p-3434-acoustic-wire-detector-with-tone-generator 2026-01-10 https://elecena.pl/product/18961827/p-3434-acoustic-wire-detector-with-tone-generator 2026-10-31