Cadence Sensor, Wireless Bluetooth or ANT and Bike Computer RPM Sensor for Road Spinning Trainers Compatible with Onelap, Wahoo Fitness, Zwift, Strava

• 【Battery】Remove the insulating sheet of the pre-installed battery before usage; re-install the battery to switch between the speed and cadence mode. • 【Mode】1 sensor can ONLY select one mode (Speed or Cadence) at the one time.So you need 2 sensors to test both speed and cadence.(1 for speed,1 for cadence) • 【Device】When using the Bluetooth protocol 1 sensor can ONLY connect to 1 APP or device concurrently; When using ANT+ protocol it can be connected to multiple devices at the same time. • 【Connection】When using a smart phone APP, you need to search for the sensor in the APP, searching through the phone system’s Bluetooth setting is invalid. • 【Hibernation】S3+ sensor will automatically enter the sleep state for 1 minute to save power after the sensor is stationary, the sensor will ONLY start sending broadcasts after it is properly woken-up.