USER MANUAL

Standard Accessories

• Main Device x 1 (CR2032 battery installed)
• Crank Magnet x 1
• Spoke Magnet x 1
• Rubber Band for Main Device x 1
• Rubber Pad for Main Device x 1
• Battery Cover Tool x 1
• Cable Ties x 6
• Screw Wrench x 1
• User Manual x 1

Accessories Installation Diagram

This section illustrates the installation of the COOSPO BK805 sensor system on a bicycle.

Spoke Magnet: Detects the cycling speed. It is typically mounted on a bicycle spoke.

Crank Magnet: Detects the cycling cadence. It is typically mounted on the bicycle crank arm.

Main Device: This unit detects both cycling cadence and speed. It transfers real-time data to a smartphone or sports watch via Bluetooth and ANT+.

Remove the Insulating Sheet

Before first use, the insulating sheet inside the battery compartment must be removed.

1. Rotate the battery cover to the OPEN position using the battery cover tool, then remove the battery cover.
2. Remove the battery insulating sheet. Reinstall the battery cover by placing it on the OPEN position and rotating it back to the closed position.

Diagram Description: The diagrams show the battery cover being opened with a tool, the battery compartment, and the removal of a small insulating sheet from around the battery.

Testing Mode & LED Light

The BK805 features a testing mode to verify correct installation of magnets and sensors.

To enter testing mode: Reinstall the battery (refer to Battery Replacement section). This mode is recommended after each installation.

In testing mode:

• If the speed sensor (Spoke magnet) is installed correctly and the wheel is rotated, the LED light will flash blue.
• If the cadence sensor (Crank magnet) is installed correctly and the crank is turned, the LED light will flash green.

The testing mode will remain active for 15 minutes after the battery is installed.

Diagram Description: The diagram shows the Main Device with an LED Light indicator and labels indicating the sensing positions for the crank magnet (cadence sensor) and the spoke magnet (speed sensor).

Accessories Installation

1. Install the Crank Magnet

   Mount the crank magnet on the crank arm and secure it with two cable ties. Do not fully tighten the ties until the correct position is determined. The following operations are similar.

   Diagram Description: Shows the crank magnet being attached to the crank arm with cable ties.

2. Install the Rubber Pad

   Attach the rubber pad onto the main sensor.

   Diagram Description: Shows the rubber pad being placed onto the bottom of the main sensor unit.

3. Align Cadence Sensor

   Align the sensing position of the cadence sensor (Main Device) with the crank magnet. Install it as shown in the diagram and fix it with cable ties.

   Diagram Description: Illustrates aligning the main device with the crank magnet on the crank arm and securing it with cable ties.

4. Attach Spoke Magnet

   Attach the spoke magnet to a bicycle spoke. Align it with the sensing position of the speed sensor on the Main Device and tighten it. The diagram shows options for circular or flat spokes.

   Diagram Description: Shows the spoke magnet being attached to a bicycle spoke, with alignment indicated.

5. Check Alignment and Distance

   Verify that the crank magnet and spoke magnet are aligned with the sensing positions of their respective sensors. The distance between the magnets and sensors should be less than 12mm. Secure the tail of the sensor with the screw wrench. Notice: Do not force the tail beyond its rotation range to avoid damaging the device.

   Diagram Description: Shows measurements 'a' and 'b' indicating distances less than 12mm, and the use of a wrench to fix the sensor tail.

6. Final Check

   Confirm successful installation by turning the crank and the back wheel of the bicycle. The speed LED should show blue, and the cadence LED should show green. Once confirmed, tighten all cable ties, cut off excess parts, and secure all accessories with the rubber band.

   Diagram Description: Shows the bicycle with the installed sensors and indicates the LED Light and Rubber Band.

Battery Replacement

If the device is not detected, consider replacing the battery.

1. Rotate the battery cover to the OPEN direction to take off the battery cover.
2. Remove the old battery and dispose of it properly according to local regulations. (Recycling symbol ♻️)
3. Install the new battery, paying attention to the positive (+) and negative (-) poles. Use the battery cover tool to rotate the battery cover in the opposite direction of OPEN to secure it.

⚠️ To avoid danger, batteries should be kept away from children.

Diagram Description: The diagrams illustrate opening the battery cover, removing the battery, and inserting a new battery.

Specifications

Applicable Smart Phones

• iOS 9.0 or above, iPhone 4s model or above
• Android 4.3 or above with Bluetooth 5.0 ?

Compatible Apps

• CoospoRide
• Wahoo Fitness
• Zwift
• Openrider
• Other Apps with speed and cadence display

(Notice: Please refer to your latest test.)

FAQ

• Q: If there is cadence or speed data missing, what should I do?A: Check the position of the magnet and sensor installed. Adjust them until the data is normal.
• Q: Can the Bluetooth 5.0 and ANT+ protocols work simultaneously?A: Yes, the bicycle speed/cadence sensor's Bluetooth 5.0 and ANT+ protocols can work at the same time. If you want to connect to a smartphone and sports watches separately, ensure the device you are connecting to supports both Bluetooth 5.0 and ANT+.
• Q: The device is compatible with a variety of popular fitness apps. How do I connect?A: For connection instructions, please refer to the instructions of the specific app you are using.

Disclaimer

The information contained in this manual is for reference only. The product described may be subject to alteration due to the manufacturer's ongoing research and development plans, without prior announcement.

COOSPO shall not bear any legal responsibility for any direct or indirect, accidental, or special damages, losses, or expenses arising from or in connection with the use of this manual and the product described herein.

FCC Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.

If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and .
2. This device must accept any interference received, including interference that may cause undesired operation.

Product Disposal and Safety

Waste electrical products should not be disposed of with household waste. Please recycle where facilities exist. Contact your local government or a retailer for additional information. (Recycling symbol ♻️)

• ⚠️ Do not open or modify the product.
• ⚠️ Do not disassemble or attempt to service this product.
• This product is safe under normal and reasonably foreseeable operating conditions.
• If the product is operating improperly, call COOSPO support.
• The product must be returned to the manufacturer for any service or repair.