1. Introduction
The COOSPO BK9S Speed Sensor is designed for efficient and accurate tracking of your cycling data. It features advanced sensor technology to prevent magnetic interference, ensuring precise data acquisition. With Bluetooth 5.0 and ANT+ connectivity, it offers improved connection speed and stability compared to previous versions, enabling high-speed data transmission.
2. Package Contents
Upon opening your COOSPO BK9S Speed Sensor package, you should find the following items:
- COOSPO BK9S Speed Sensor Unit
- CR2032 Battery (pre-installed or separate)
- Rubber Bands for mounting
- User Manual
Image: Contents of the COOSPO BK9S Speed Sensor package, showing the sensor unit, user manual, and rubber bands for installation.
3. Setup and Installation
3.1. Battery Installation
The COOSPO BK9S Speed Sensor uses a CR2032 coin cell battery. Ensure the battery is correctly installed before first use.
- Gently twist the battery cover counter-clockwise to open.
- Insert the CR2032 battery with the positive (+) side facing upwards.
- Align the battery cover and twist clockwise to secure it.
Image: The COOSPO BK9S Speed Sensor with its battery compartment open, revealing the CR2032 battery. This image illustrates the battery type and orientation for installation.
Video: This video demonstrates the process of installing the battery into the iGPSPORT SPD70 sensor, which uses a similar mechanism to the COOSPO BK9S. It shows how to open the battery cover, insert the CR2032 battery, and close the cover securely.
3.2. Mounting the Sensor
The BK9S Speed Sensor is designed for easy, magnet-free installation on your bicycle's wheel hub. No magnets or complex wiring are required.
- Select the appropriate rubber band size for your wheel hub.
- Place the sensor unit on the center of your wheel hub.
- Secure the sensor firmly to the hub using the rubber bands, ensuring it is stable and does not interfere with moving parts.
Image: The COOSPO BK9S Speed Sensor is shown securely attached to the front wheel hub of a bicycle using rubber bands. This demonstrates the correct placement for speed measurement.
Video: This video illustrates the installation process for a CYCPLUS Cadence/Speed Sensor, which is similar to the COOSPO BK9S. It shows how to attach the sensor to the crank arm for cadence or the wheel hub for speed using rubber bands.
4. Connectivity
4.1. Pairing with Cycling Computer
The BK9S sensor supports both Bluetooth 5.0 and ANT+ protocols, allowing it to connect wirelessly with various cycling computers.
- Ensure your cycling computer supports ANT+ or Bluetooth 5.0.
- Activate the sensor by rotating the wheel a few times. The LED indicator will flash.
- On your cycling computer, navigate to the sensor pairing menu.
- Select "Speed Sensor" and initiate the search.
- Once the BK9S is detected, select it to pair.
Video: This video demonstrates the process of installing the battery into the iGPSPORT SPD70 sensor, which uses a similar mechanism to the COOSPO BK9S. It shows how to open the battery cover, insert the CR2032 battery, and close the cover securely.
4.2. Pairing with Smartphone Apps
The BK9S is compatible with over 200 cycling applications, including popular platforms like Zwift, Wahoo, ROUVY, CoospoRide, and XOSS. This allows you to view real-time speed data, share logs, and enhance your riding experience.
- Download your preferred cycling app (e.g., CoospoRide) from your smartphone's app store.
- Enable Bluetooth on your smartphone.
- Activate the sensor by rotating the wheel a few times.
- Open the app, go to the sensor pairing section, and select "Speed Sensor".
- Select the BK9S from the list of available devices to connect.
Note: Some apps, like Wahoo, may not allow simultaneous pairing of two sensors from different manufacturers.
Image: A smartphone screen displaying the CoospoRide app's sensor connection interface, alongside the COOSPO BK9S Speed Sensor and logos of compatible apps such as ROUVY, Peloton, Wahoo, and Zwift.
Video: This video demonstrates how to set up the COOSPO CS300 cycling computer using the CoospoRide app. It includes steps for initial device charging, button functions, setting time zone, wheel size, unit settings, and power calibration, as well as syncing data with third-party apps like TrainingPeaks.
5. Operation
5.1. Power Saving Mode
The BK9S Speed Sensor is equipped with a power-saving feature. It automatically enters sleep mode if no movement is detected for 5 minutes. Movement will reactivate the sensor, extending battery life up to approximately 300 hours.
Image: The COOSPO BK9S Speed Sensor is highlighted with a large "300H" graphic, indicating its long battery life due to power-saving features.
5.2. IP67 Waterproof Rating
With an IP67 waterproof rating, the BK9S Speed Sensor is protected against water ingress from any direction. This allows you to continue your ride even in sudden rain without worrying about sensor damage.
Image: The COOSPO BK9S Speed Sensor is shown partially submerged in water with droplets splashing around it, illustrating its IP67 waterproof capability.
6. Specifications
| Feature | Detail |
|---|---|
| Brand | CooSpo |
| Model Number | BK9S |
| Product Dimensions (LxWxH) | 9 x 7 x 2 cm |
| Material | Plastic |
| Product Weight | 30 grams |
| Mounting Type | Wired (referring to rubber bands, not electrical wiring) |
| Detection Distance | 10 meters |
| Product Use | Cycling, Outdoor Activities, Waterproof Environment |
| Battery Life | Approx. 300 hours (CR2032 battery) |
| Waterproof Rating | IP67 |
7. Maintenance
To ensure the longevity and optimal performance of your COOSPO BK9S Speed Sensor, please follow these maintenance guidelines:
- Cleaning: Wipe the sensor with a soft, damp cloth after each ride, especially if it has been exposed to sweat, rain, or dirt. Avoid using abrasive cleaners or solvents.
- Battery Replacement: Replace the CR2032 battery when the low battery indicator appears on your connected device or when the sensor stops responding. Ensure the battery cover is securely fastened after replacement to maintain waterproof integrity.
- Storage: Store the sensor in a cool, dry place away from direct sunlight and extreme temperatures when not in use.
- Inspection: Periodically check the rubber bands for any signs of wear or damage. Replace them if necessary to ensure the sensor remains securely mounted.
8. Troubleshooting
If you encounter issues with your COOSPO BK9S Speed Sensor, try the following steps:
- Sensor Not Connecting:
- Ensure the sensor is active (rotate the wheel to wake it up).
- Check the battery level and replace if necessary.
- Verify that Bluetooth/ANT+ is enabled on your receiving device (cycling computer, smartphone).
- Move closer to the receiving device to rule out range issues.
- Try unpairing and re-pairing the sensor with your device.
- Inaccurate Speed Readings:
- Ensure the sensor is securely mounted on the wheel hub and not moving or slipping.
- Verify that the wheel circumference setting in your cycling computer or app is correct.
- Check for any physical obstructions or damage to the sensor.
- Short Battery Life:
- Ensure you are using a fresh CR2032 battery.
- The sensor automatically enters sleep mode, but frequent activation/deactivation might slightly reduce battery life.
- Extreme temperatures can affect battery performance.
9. Warranty and Support
COOSPO offers a 12-month quality warranty service for this product. If you have any questions or encounter any issues during use, please do not hesitate to contact us. Our support team will respond within 24 hours (excluding Saturdays, Sundays, and public holidays).
For initial defects, we offer free exchange or a full refund.