Get confident speed readings and keep tabs on your spin rate with the Wahoo Fitness RPM Sensor Bundle. This bundle includes Wahoo's RPM Speed Sensor and RPM Cadence sensor to add additional data points to your activity tracking arsenal. Whether you're rolling through densely forested coastal roads or counting down the minutes during an indoor roller session, these sensors will keep you confidently on track. Disguised as a small, discreet pods, these sensors mount stealthily to your hub to gather speed data (the RPM Speed Sensor) and either your bike or shoe to gather cadence data (RPM Cadence Sensor). Both sensors run on an easy-to-replace CR2032 battery and feature two LED lights that indicate device connection and data detection. The bundle comes packaged with pre-installed batteries, a rubber mount, zip ties, a shoe mount, 3M double-sided tape, a hub mount, a quick start guide, and a product info guide.