Review on 🩺 Oregon Scientific PM138 Personal Pulse Meter (Discontinued) - Reliable Heart Rate Monitoring Device by Linda Diaz

Does not measure heart rate while running or walking fast. Just keeps the rust in place - forever. Tried in the deep shadow, no. Tried in medium shade, no. Tried stopped - sometimes. The only time I was even able to get consistent readings was after a run when I was cooling off indoors. Not the app I wanted - I wanted to read pretty quickly while working out - never got it. I replaced the battery (pia!) and got slightly better performance. Expect better technology.