COOSPO BK9C Bike Cadence Sensor User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your COOSPO BK9C Bike Cadence Sensor. The BK9C sensor is designed to accurately track and provide real-time cycling cadence data to your bike computer or compatible cycling applications. It features dual-band technology (ANT+ and Bluetooth 5.0) for broad compatibility and a durable, waterproof design.

Key features include:

• Accurate Cadence Measurement: Provides ±1rpm accuracy for real-time cycling cadence data.
• Dual Band Technology: Connects via ANT+ and Bluetooth 5.0 to various devices and apps.
• Easy Installation: Magnet-free design attaches directly to the bike's crank arm.
• IP67 Waterproof: Ensures reliable performance in various weather conditions.
• Long Battery Life: Up to 300 hours of operation with a replaceable CR2032 battery.

2. Package Contents

Upon unpacking your COOSPO BK9C Cadence Sensor, please verify that all items listed below are present:

• COOSPO BK9C Cadence Sensor Unit
• CR2032 Battery (pre-installed or included separately)
• Rubber Bands for Mounting
• User Manual

3. Product Overview

The COOSPO BK9C is a compact and lightweight cadence sensor designed for cyclists. It utilizes an accelerometer for precise, magnet-free cadence measurement.

Dimensions and Weight:

• Length: Approximately 1.3 inches
• Width: Approximately 1.2 inches
• Thickness: Approximately 0.3 inches
• Weight: 8.4 grams

4. Setup

4.1 Battery Installation

The COOSPO BK9C Cadence Sensor uses one CR2032 coin cell battery. The battery may be pre-installed, but if not, or if replacement is needed, follow these steps:

1. Locate the battery cover on the back of the sensor.
2. Use a coin to twist the battery cover counter-clockwise to open it.
3. Insert the CR2032 battery with the positive (+) side facing upwards.
4. Align the battery cover and twist clockwise to secure it.

4.2 Mounting the Sensor

The BK9C sensor is designed for easy, magnet-free installation on your bicycle's crank arm.

1. Select a suitable rubber band from the package.
2. Place the sensor on the inside of your bicycle's crank arm.
3. Secure the sensor firmly to the crank arm using the rubber bands. Ensure the sensor is stable and does not move during cycling.

5. Operating Instructions

5.1 Activating the Sensor

After installation, the sensor will activate automatically when it detects movement. Rotate your bike's crank arm a few times to wake up the sensor. A blue LED indicator light will flash briefly to confirm activation.

5.2 Pairing with Devices and Applications

The COOSPO BK9C Cadence Sensor supports both Bluetooth 5.0 and ANT+ connectivity, allowing it to pair with a wide range of cycling apps, GPS bike computers, and smartwatches.

General Pairing Steps:

1. Ensure the sensor is awake by rotating the crank arm.
2. Enable Bluetooth or ANT+ on your receiving device (smartphone, bike computer, smartwatch).
3. Open your preferred cycling application (e.g., Rouvy, Zwift, Peloton, Wahoo) or navigate to the sensor pairing menu on your bike computer/smartwatch.
4. Search for new sensors. The BK9C should appear in the list.
5. Select the BK9C sensor to pair. Once connected, the app/device will display real-time cadence data.

Note: Some applications, such as the Wahoo app, may have limitations on pairing multiple third-party sensors simultaneously.

5.3 Compatibility

The BK9C sensor is compatible with a wide range of fitness platforms:

• Fitness Applications: Rouvy, Zwift, Peloton, Wahoo Fitness, CooSpoRide, and others supporting ANT+ or Bluetooth cadence sensors.
• GPS Bike Computers: Devices from brands like Garmin, Wahoo, CooSpo, and others with ANT+ or Bluetooth connectivity.
• Smartwatches: Compatible with smartwatches that support external ANT+ or Bluetooth sensors for cycling data.

6. Maintenance

6.1 Battery Replacement

The COOSPO BK9C Cadence Sensor provides approximately 300 hours of battery life. When the battery is low, the sensor's performance may become inconsistent, or it may fail to connect. Replace the CR2032 battery as described in Section 4.1.

6.2 Cleaning and Storage

The sensor has an IP67 waterproof rating, meaning it is protected against temporary immersion in water. However, to ensure longevity:

• Wipe the sensor with a damp cloth to clean it.
• Do not soak the sensor in water or clean it with high-pressure water jets.
• Store the sensor in a cool, dry place when not in use for extended periods.

7. Troubleshooting

If you encounter issues with your COOSPO BK9C Cadence Sensor, refer to the following common problems and solutions:

• Sensor Not Connecting/Waking Up:
  • Ensure the battery is correctly installed and has sufficient charge. Replace if necessary.
  • Rotate the crank arm for at least 15-30 seconds to wake the sensor. The blue LED should flash.
  • Check that Bluetooth/ANT+ is enabled on your receiving device.
  • Move the sensor closer to your receiving device during pairing.
  • Restart your receiving device and the cycling application.
• Inaccurate Cadence Readings:
  • Ensure the sensor is securely mounted on the crank arm and not moving or vibrating excessively.
  • Check for any obstructions or interference near the sensor.
  • Verify that the sensor is correctly identified as a cadence sensor in your application settings.
• Short Battery Life:
  • Ensure you are using a fresh, high-quality CR2032 battery.
  • Extreme temperatures can affect battery performance.

8. Specifications

9. Warranty and Support

COOSPO offers a 12-month exchange warranty for the BK9C Cadence Sensor. If you encounter any issues or require assistance, please contact COOSPO customer support. Our professional technical support team is available to provide satisfactory solutions.

For support, please refer to the contact information provided with your product packaging or visit the official COOSPO website.