Supports Daily Blood Pressure Management with Easy Operation
Citizen Arm Blood Pressure Monitor 'CHUN380' Released
~ Features Tangle-Free 'Kurutto Cuff' ~
Citizen Systems Co., Ltd. (Headquarters: Nishitokyo City, Tokyo; President: Katsutoshi Mukaijima; hereinafter referred to as "the Company") will release the Citizen Arm Blood Pressure Monitor 'CHUN380' on November 21, 2025. This device requires no initial setup, enabling easy measurement as well as displaying results on a large LCD screen designed for better readability.
Release Date: November 21, 2025
Price: Open
The new product is an arm blood pressure monitor designed for beginners, focusing on basic functions and ease of use. It requires no initial setup; by simply inserting the included batteries and pressing the measurement/start button, you can start measuring right away. It features a large LCD screen, measuring approximately 66mm x 47mm, which is about 1.8 times larger than the previous model 'CH-453F', enhancing visibility with bolder text.
Additionally, the cuff hose that connects the main unit and the cuff (arm band) employs the Company’s original 'Kurutto Cuff', which minimizes tangling during measurements and stores neatly when not in use, helping reduce the hassle of daily blood pressure measurement.
Furthermore, it includes three notification functions: 'Cuff Wrap Error', 'Body Movement' (movement of the body or arm during measurement), and 'Pulse Interval Variation', supporting measurement accuracy.
Main Features
Easy Operation for First-Time Users
No complicated initial setup is required. Simply insert the batteries and press the measurement/start button to begin measuring right away.Large LCD Screen with Blood Pressure Classification Display
Utilizes a large LCD screen approximately 1.8 times larger than the previous model. Displays current blood pressure levels using a six-stage classification mark based on WHO (World Health Organization) / ISH (International Society of Hypertension) guidelines.Comfortable Measurement and Storage with Unique 'Kurutto Cuff'
Equipped with the Company's unique 'Kurutto Cuff', which minimizes tangling of the cuff hose during measurement and stores neatly when not needed.Reliable Measurement Support Functions
Features three notification functions: 'Cuff Wrap Error', 'Body Movement', and 'Pulse Interval Variation'. Capable of recording up to 30 measurement results and calculating and displaying the average of the most recent three measurements.Environmentally Conscious Power Design
Compatible with four AA batteries and nickel-metal hydride rechargeable batteries (eneloop). Also supports a dedicated AC adapter (sold separately).
Basic Specifications
Product Name | Citizen Arm Blood Pressure Monitor CHUN Series |
Model Number | CHUN380 |
Measurement Method | Oscillometric Method |
Cuff (Arm Band) | Soft Cuff (Applicable Arm Circumference: 22.0–32.0cm) |
Measurement Range | Pressure 0–280mmHg, Resolution 1mmHg, Pulse Rate 40–180 beats/min |
Power Source | Four AA batteries or four AA nickel-metal hydride rechargeable batteries (eneloop®), or dedicated AC adapter (sold separately) |
Memory | 30 readings |
Dimensions | Approx. 103 (W) × 55 (H) × 124 (D) mm |
Weight | Main Unit: Approx. 230g (without batteries) / Cuff: Approx. 100g |
Included Accessories | Cuff (Arm Band), Four AA alkaline batteries (for monitoring), Instruction Manual / Warranty |
Medical Device Certification Number | 307AHBZX00028000 |



