The S3+ sensor 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.

Specifications: 

• Product Size: 85*29.8*38.3mm
• Wireless Connect: Bluetooth 4.0/ANT+
• Data: Cadence/Speed
• Waterproof Grade: IP66
• Sensor: Geomagnetic Sensor
• Working Temperature: -20-50℃
• Weight: 9g (with battery)
• Product Type: S3+