Real-Time Heart Rate Monitor Armband

Product Introduction

Thank you for purchasing the CL837 Heart Rate Monitor. This advanced device provides real-time monitoring of heart rate, blood oxygen (SpO2), step count, and calorie data. It transmits data via Bluetooth or ANT+ to compatible fitness apps on your device. Designed to help you manage exercise intensity effectively, the CL837 ensures a scientific approach to fitness tracking.

Please read this user manual thoroughly before use and keep it for future reference.

Important Reminder:

• Fully charge the device before first use.
• This device is intended for fitness and recreational purposes only and is not designed for medical use.
• Consult a physician to determine your appropriate heart rate range for safe exercise.

Key Features:

• Real-time monitoring of heart rate, blood oxygen (SpO2), and step count
• Bluetooth Low Energy 5.0 for seamless connectivity
• Buttonless design with auto on/off functionality
• Built-in acceleration sensor for enhanced tracking
• Rechargeable lithium battery for long-lasting use
• Stores 2 days of heart rate data and 7 days of fitness data
• Vibration reminder for important alerts
• LED indicator for status updates
• Compatible with fitness apps: X-Fitness, Wahoo, Zwift, Runtastic Pro, Nike Run Club

Package Contents:

• CL837 Heart Rate Monitor
• USB Docking Charger
• English User Manual

Charging the Device:

1. Plug in the USB charger.
2. Place the sensor onto the charger.
3. Charging indicators:
   • Low battery (20%): Red LED flashes smoothly, and the device vibrates.
   • Charging: Red and Green LEDs flash alternately.
   • Fully charged: Green LED remains solid.

Wearing the Device:

• Position the device on your upper arm.
• Adjust the band to a comfortable fit, ensuring the sensor remains in place.
• Avoid overtightening to prevent circulation issues.
• The device turns on automatically when worn, indicated by a rapid purple LED flash.

Connecting the Device:

This device utilizes Bluetooth Low Energy 5.0 for wireless connectivity.

Pairing with a Fitness App:

1. Enable Bluetooth on your phone.
2. Allow all permissions when prompted by the app.
3. Navigate to the sensor settings within the app.
4. Search for and connect to the device.

Pairing with Smart Bluetooth Devices (e.g., Sports Watches, Gym Equipment):

1. Access the device settings menu.
2. Select ‘Add HR Sensor.’
3. Search for and connect to the device.

Data Logging Intervals (When Connected to an App):

Note: The device vibrates three times (two groups) when the heart rate reaches 167 bpm.

Blood Oxygen (SpO2) Measurement:

1. Wear the device.
2. Open the X-Fitness app.
3. Connect the device and navigate to the blood oxygen interface.
4. Click Go to initiate measurement.
5. Remain seated and relaxed for approximately 50 seconds during the process.

Specifications:

• Dimensions: 47mm (L) x 30mm (W) x 10mm (H)
• Weight: 12.1g
• Battery Type: Rechargeable Lithium Battery
• Battery Life: Up to 50 hours of continuous heart rate monitoring
• Operating Temperature: -10°C to 50°C (14°F to 122°F)
• Transmission: ANT+, Bluetooth
• Waterproof Level: IP67 (Splash-proof and sweat-resistant)

Disclaimer:

This user manual is for reference only. The manufacturer reserves the right to modify product specifications as part of continuous improvement efforts without prior notice. The manufacturer is not liable for any direct or indirect damages resulting from the use of this manual or the product.

EU Declaration of Conformity:

We hereby declare that the CL837 Armband Heart Rate Monitor complies with Directive RED 2014/53/EU. A signed and dated Declaration of Conformity is available upon request.

FCC Statement:

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

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

Warning: Unauthorized modifications may void the user’s authority to operate this equipment.

Note: This equipment complies with limits for a Class B digital device under Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against interference in residential installations. If interference occurs:

• Reorient or relocate the receiving antenna.
• Increase the distance between the device and receiver.
• Connect the device to an outlet on a different circuit.
• Consult a qualified technician for assistance.

This device meets general RF exposure requirements and is safe for portable use without restrictions.

For further assistance, please contact customer support or visit our website. Enjoy your CL837 Heart Rate Monitor and make the most of your fitness journey!