Or the drama to get an accurate treadmill speed sensor which can be used to do our own calculations. We have reviewed this topic previously: https://petergamma.org/category/treadmill-calibration/ https://www.galaxus.ch/en/s3/product/newgen-medicals-treadmill-treadmills-15855960 2. Then we did some tests with a Garmin Venu2 and wrist based speed measurements. 3. We did also some tests with the TreadTracker treadmill speed sensor 4. …