The 2-wire to 4-wire converter can be used as connect 2-wire intercom system with a variety of 4-wire intercom systems. The converter can be powered from the intercom system and requires no additional power supply. It provides low noise and distortion wide frequency response and supports auto nulling. Users can easily change the input and output gain and the converter confirms the signal via a 6 segment LED indicator. 2-wire / 4-wire bi-directional conversion Auto nulling Adjustable gain 220Ω termination 6 segment LED level indication Plug and play simple Installation Contents: 1 x Converter 1 x USB Type-C cable 5 x Mounting screws and 1 x User Manual
