Double check that your sensors have good contacts and good batteries. See if you get the same readings with another reader, e.g. Garmin head unit.
A few quick questions from our developers:
- Were you specifically trying for the Sprint? Or did it just happen during normal riding?
- Was the time you received actually accurate?
- Or was the HRM just inaccurate?
yes I was going for sprint? time was accurate I believe, I have used the same system since and all is ok just that incident when I was going for it? maybe I moved the heartbeat sensor as i was powering maybe?