Cebek DTMF-1 is a dual tone multi frequency (DTMF) transmitter module which plays audible telephone tones. It allows you to generate control sequences on DTMF remote receivers consecutively and play the tone corresponding to the pressed number. It can memorise 10 registers composed of a maximum of 10 digits and then to play them in an automatic operating mode. The output is supplied in low frequency mode (adjustable between 0,1 and 1V), allowing to be injected into microphone or line inputs. It is specially designed to transmit the code through the telephone network or by radio-amateur. The remote DTMF key with a control on a maximum of 8 outputs using DTMF-2 or DTMF-3 modules. It is supplied with the keyboard and indicator LED's
