Owlet false alarm?!

Around 5 this morning my daughter started getting fussy so my husband went to make her a bottle. I picked her up because she started crying and sat her on my lap while I lightly started rubbing and patting her back. She burped and a few seconds later the red alarm went off on her Owlet and we got the notification on our phones that it was due to a “fast heart rate over 220 bpm.” I was holding her in my arms and she didn’t seem in any distress. 5 minutes later her heart rate was back around 150s. I left the Owlet on and she was fine the rest of the morning. I called her ped. this morning and told them what happened and the PA said it was a false alarm. Has something like this happened to anyone else?? Maybe it was due to me burping her? I was a wreck all morning. I feel a little better after talking to her dr’s office but just so worried to use this dang thing now.