I am selling an iGPSPORT C61 wireless sensor, complete with the original mounting bands. It features dual transmission technology, ANT+ and Bluetooth 4.0, and is a dual sensor: it can be set as either a cadence sensor (to be attached to the crank arm) or a speed sensor (on the hub) as desired. The sensor is sold without a battery (it uses a standard CR2032), but its perfect functionality has just been verified by inserting a test battery and activating device search on a Garmin bike computer, which detected it instantly. Compatible with Garmin, Wahoo, Bryton, Zwift, and smartphone apps.

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