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In some high-security Sepam models, the 120 code is valid for only 24 hours from first use. You will need to reconnect and request a new dynamic code from SFT2841. authorization code sft2841 120
Relays manufactured after 2010 often disabled the static 120 code. They now require a rolling code generated by the SFT2841 software itself. In this case, click the "Request Code" button inside SFT2841—the software will calculate the correct value based on the relay’s unique ID. An explanation of what an authorization code is