This sensor fits perfectly with my garminb edge 500. I bought it to have a second and put it on my bike home trainer. It is well recognized as Ant + sensor. The only negative is the small size and poor location of reset button which serves to check and control the speed and cadence magnet are detected by the sensor. It is very visible and accessible. Otherwise you can order this product ... 38 is much cheaper than large specialized surface that offers 60 to exactly the same thing !!!
