[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 2244 SIGFOX Q&A Related Knowledge Base Posts -[SIGFOX] 2) How to ensure data reception (acknowledgment System)? How to ensure only issue until the corresponding address has received the data?[SIGFOX] What if SIGFOX does not have a base station in my area?[SIGFOX] What are the technical specifications of the RC16xxxx-SIG module?