The S3+ senor is the updated version of the GEMINI 200. By reinstalling the battery, you can switch the device between speed sensor and cadence sensor modes. Supporting connection via both ANT+ and Bluetooth, S3+ is able to record data accurately, making it the best companion for a wide range of GPS computers and smartphone apps.
The 3rd generation product of speed/cadence dual mode sensor S314 is coming. The exquisite appearance featured with the anti-loss strap and the reliable waterproof and battery life as well as the easily-switched dual mode, which will bring you a better experience.