[SIGFOX] How many bytes can I transmit in one message to my device? You can send up to 8 bytes per message to the device (downlink). Last Update: August 8, 2017 December 5, 2016 1119 SIGFOX Q&A Downlink , Sigfox , Transmit Related Knowledge Base Posts -[SIGFOX] We can not check memory as the modules does not reply with ‘>’ when we go into config mode.[SIGFOX] How do I manage the unique ID and Key?[SIGFOX] Can you please provide the IDs and PACs asap?