Many of us run multiple sensors on our bikes. Heart rate, cadence, and power are a normal part of how many cyclists train or monitor their fitness, but there's an important thing to watch out for when selecting your sensor combination: you cannot have redundant sensor readings.
A good example is my road bike. I've been testing a power meter for the our R&D department, but since the power meter provides a cadence reading, I can't run the Lezyne Cadence Speed Flow Sensor simultaneously. Both sensors providing a cadence number would cause errors, so I had to go pick-up a dedicated speed sensor (I also could've let speed default to GPS signal). If I were running a hub based power meter, it would provide power, cadence, and speed, therefore I wouldn't be able to utilize the speed sensor.
It's simple enough, but if you haven't stopped to think about it, it could trip you up.
Here's our current list of supported sensors. It's always a good idea to check with the manufacturer of your sensor for its exact specifications.