Originally Posted by
DaveLeeNC
...Or maybe there is a device profile for a dual device where a single connection can contain either or both speed/cadence info...
Correct. There is a profile for a single device that transmits both cadence magnet passes and wheel magnet passes. The Bongtrager integrated node device and Garmin GSC10 are examples. The sensors only report each time a magnet has passed. The receiving device counts these and divides by time to calculate and display a rate.