[SIGFOX] How many bytes can I transmit in one message from my device? You can send up to 12 bytes per message from the device (uplink). Last Update: August 8, 2017 December 5, 2016 1804 SIGFOX Q&A Related Knowledge Base Posts -[SIGFOX] What is the battery lifetime of a SIGFOX device?[SIGFOX] What is the competitive advantage of Radiocrafts vs other module providers?[SIGFOX] Are the modules certified for FCC and Australia are exactly the same (hardware-wise) and if so, how they are switched to work under FCC or Australian standards