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The Wahoo RPM sensors are your sleek little solution for measuring cycling speed and cadence data. They're wireless, magnet-less, lightweight, and easily mount to your bike. Bluetooth Smart and ANT+ dual band technology allows you to connect to and display data on both smartphones and GPS bike computers.
I tried these magnet-free sensors, but I was disappointed with their accuracy. The sensors are capable of displaying average speed and distance approximately correctly. Instead, the instantaneous speed and cadence vary by approximately +/- 20%. I think it's too much at a steady speed.
Particularly an uneven road causes a lot of mistakes.
If you want an accurate meter, I recommend magnetic sensors such as Wahoo SC Blue.
Kokeilin näitä magneetittomia antureita mutta petyin niiden tarkkuuteen. Anturit osaavat kyllä näyttää keskinopeuden ja matkan suurin piirtein oikein. Sen sijaan hetkellinen nopeus ja kadenssi vaihtelevat n. +/- 20%. Se on mielestäni liikaa tasaisella nopeudella.
Etenkin epätasainen tie aiheuttaa paljon virheitä.
Jos haluat tarkan mittarin, niin suosittelen magneetti-antureita, esim. Wahoo SC Blue.