1. Introduction
This manual provides essential instructions for the proper use and care of your Omron CM2 Medium Cuff. This cuff is designed as a replacement component for compatible Omron blood pressure monitors. Please read this manual thoroughly before use to ensure accurate readings and product longevity.
2. Product Overview
The Omron CM2 Medium Cuff is an upper arm blood pressure monitor cuff designed for individuals with an arm circumference between 22 cm and 32 cm. It is a crucial component for obtaining accurate blood pressure measurements when used with a compatible Omron blood pressure monitor.

Image 1: The image displays the product packaging for the Omron CM2 Medium Cuff. The box is white with blue accents, featuring the Omron logo and text 'CM2 Medium Cuff Upper Arm Blood Pressure Monitor Cuff'. An image of the grey blood pressure cuff is visible on the front, along with 'ARM CIRCUMFERENCE 22-32 CM'.
3. Compatibility
This Omron CM2 Medium Cuff (Item Number 9513256-6) is compatible with the following Omron blood pressure monitor models:
- M2 Basic (HEM-7121J-E)
- M2 (HEM-7121-E)
- M300 (HEM-7121-D)
- M1 Basic (HEM-7121J-AF / HEM-7121J-LAF)
- X2 Basic (HEM-7121J-EO)
Important Note:
This cuff is not suitable for use with Omron Comfort devices or devices that utilize Omron's Intelli Wrap Cuff technology.
4. Setup and Connection
- Unpack the Cuff: Carefully remove the cuff from its packaging.
- Identify the Air Tube: Locate the air tube extending from the cuff.
- Connect to Monitor: Insert the connector at the end of the air tube firmly into the air jack on your compatible Omron blood pressure monitor. Ensure a secure connection to prevent air leakage during measurement.
- Adapter Plugs (if necessary): The cuff may come with various adapter plugs. Select the plug that correctly fits your specific Omron monitor model's air jack. If your monitor's air jack is different, you may need to use an adapter from your previous cuff if it is compatible.
5. Operating Instructions: Applying the Cuff
Correct cuff application is essential for accurate blood pressure readings.
- Prepare for Measurement: Sit in a chair with your feet flat on the floor. Rest your arm on a table so the cuff will be at heart level. Avoid talking or moving during the measurement.
- Position the Cuff: Slide your arm through the cuff loop. The bottom edge of the cuff should be 1 to 2 cm above your elbow. The air tube should run down the center of your arm, aligned with your middle finger.
- Tighten the Cuff: Wrap the cuff snugly around your upper arm. The fabric fastener should be securely attached. Ensure there is enough space to insert two fingers between the cuff and your arm. The cuff should not be too tight or too loose.
- Start Measurement: Once the cuff is correctly applied, follow the instructions for your specific Omron blood pressure monitor to begin the measurement process.
6. Maintenance and Care
- Cleaning: Wipe the cuff gently with a soft, dry cloth. If necessary, use a cloth lightly dampened with water and a mild soap, then wipe dry. Do not wash the cuff in a washing machine or immerse it in water.
- Storage: Store the cuff in a clean, dry place away from direct sunlight, extreme temperatures, and humidity. Avoid folding the air tube sharply or placing heavy objects on the cuff.
- Inspection: Regularly inspect the cuff and air tube for any signs of wear, cracks, or damage. If damage is observed, replace the cuff to ensure accurate readings.
7. Troubleshooting
If you encounter issues with your Omron CM2 Medium Cuff, consider the following:
- Inaccurate Readings: Ensure the cuff is correctly sized for your arm (22-32 cm circumference). Improper cuff placement or a loose cuff can lead to inaccurate results.
- Error Messages on Monitor: Check that the air tube is securely connected to the monitor. Inspect the air tube for any kinks, cracks, or leaks. A damaged air tube can prevent proper inflation.
- Cuff Not Inflating: Verify the air tube connection. If the tube or cuff is visibly damaged, it may need replacement.
- Cuff Too Tight/Loose: Re-adjust the cuff to ensure it fits snugly but not uncomfortably tight. You should be able to insert two fingers between the cuff and your arm.
For persistent issues, refer to your blood pressure monitor's instruction manual or contact Omron customer support.
8. Specifications
- Product Name: Omron CM2 Medium Cuff
- Model Number: 9513256-6
- Arm Circumference: 22 - 32 cm
- Product Dimensions: Approximately 1.1 x 9.7 x 6.5 inches
- Product Weight: Approximately 4.97 ounces
- Manufacturer: OMRON
- Material: Not specified, typically durable fabric and rubber tubing.
9. Warranty and Support
For information regarding warranty coverage, product registration, or technical support, please refer to the documentation provided with your Omron blood pressure monitor or visit the official Omron website. Keep your purchase receipt as proof of purchase for warranty claims.
Omron Customer Support: For specific inquiries or assistance, please contact Omron customer service through their official channels.





