November 18, 2025
Citizen Systems Corporation
Supports Daily Blood Pressure Management with Easy Operation
Launching Citizen Arm-Type Blood Pressure Monitor 'CHUN380'
~ Equipped with Tangle-Free 'Kurutto Cuff' ~
Citizen Systems Corporation (Headquarters: Nishitokyo City, Tokyo, President: Katsutoshi Mukojima) will launch the Citizen arm-type blood pressure monitor 'CHUN380' on November 21, 2025, featuring easy measurement without initial setup and a large LCD screen for easy viewing of measurement results.
Release Date: November 21, 2025
Price: Open
The new product is an arm-type blood pressure monitor designed for easy use, especially for beginners, focusing on essential functions to enhance ease of use. There is no need for initial setup; just insert the included batteries and press the measurement/stop button to start using it immediately. It features a large LCD screen measuring approximately 66mm × 47mm, about 1.8 times the size of the previous model "CH-453F", and has improved visibility by thickening the font width.
Additionally, the cuff hose connecting the main unit and cuff adopts our unique 'Kurutto Cuff', which minimizes tangling during measurement while allowing for neat storage. This reduces the hassle of daily blood pressure measurement.
Moreover, the monitor includes three notification functions: "Cuff Wrapping Error", "Body Movement (movement during measurement)", and "Pulse Interval Variation" to support measurement accuracy.
Main Features
- Easy operation, user-friendly blood pressure monitor for beginners
No complicated initial setup required. Just insert the batteries and press the measurement/stop button to start measuring right away. - Large LCD screen and blood pressure classification display
Adopts a large LCD screen about 1.8 times bigger than previous models. It displays the current blood pressure level using a 6-stage blood pressure classification mark based on WHO (World Health Organization) / ISH (International Society of Hypertension) blood pressure classifications. - Comfortable measurement and storage with the unique 'Kurutto Cuff'
Equipped with our unique 'Kurutto Cuff', which minimizes tangling of the cuff hose during measurement and allows for tidy storage. - Reliable measurement support functions
Includes three notification functions: "Cuff Wrapping Error", "Body Movement", and "Pulse Interval Variation". Can record up to 30 measurement results and calculate and display the average of the last three readings. - Environmentally conscious power design
Power supply supports four AA alkaline batteries, as well as four AA nickel-metal hydride rechargeable batteries (eneloop). Also compatible with a dedicated AC adapter (sold separately).
Specifications
| Model Name | Citizen Arm-Type Blood Pressure Monitor CHUN Series |
| Model Number | CHUN380 |
| Measurement Method | Oscillometric Method |
| Cuff | Soft cuff (Applicable arm circumference range: 22.0–32.0 cm) |
| Measurement Range | Pressure 0–280 mmHg, Accuracy 1 mmHg, Pulse Rate 40–180 beats/min |
| Power Supply | Four AA alkaline batteries or four AA nickel-metal hydride rechargeable batteries (eneloop®) or dedicated AC adapter (sold separately) |
| Memory | 30 readings |
| Dimensions | Approximately 103 (W) × 55 (H) × 124 (D) mm |
| Weight | Main Unit: Approximately 230g (excluding batteries) / Cuff: Approximately 100g |
| Included Accessories | Cuff, four AA alkaline batteries (for monitoring), User manual / Warranty |
| Medical Device Certification Number | 307AHBZX00028000 |
