Overview
The document describes the H2-BP, a wristband blood pressure monitor designed for convenience and accuracy. It measures blood pressure by applying pressure to the radial artery, which is located on the radial bone, while ensuring the ulnar artery remains unblocked to maintain blood circulation. The device is compact, user-friendly, and provides reliable readings.

Specifications
- Measurement Method: Oscillometric
- Measurement Range: 30 ~ 260 mmHg
- Accuracy: ±5 mmHg
- Pulse Rate Range: 40 bpm ~ 180 bpm with ±5% accuracy
- Resolution: 1 mmHg
- Power Input: 5VDC
- Battery: 160mAh, 3.7V Li-ion Polymer, 3 days capacity, 1h 30min charging time
- Memory: Up to 200 readings
- Display: OLED (96 x 39 Pixel)
- Dimensions: 81.5(H) x 79.5(D) x 26.5(W) mm
- Weight: About 46g

Performance and Features
- Provides a stable signal by focusing on the radial artery and eliminating interference from the ulnar artery.
- Approved as a medical-grade device with a tolerance of ±5 mmHg.
- Data can be accessed via a Bluetooth-connected smartphone app.
- Offers 24-hour ambulatory blood pressure monitoring (ABPM) with customizable time intervals and day/night modes.

Environmental Conditions
- Operating Temperature: 10℃ ~ 40℃
- Operating Humidity: 15% ~ 90%
- Storage Temperature: -20℃ ~ 70℃
- Storage Humidity: 5% ~ 95%

Physical Characteristics
- Material: ABS, PC
- Measurable Wrist Circumference: 15.5 ~ 19.5 cm (6.10 ~ 7.67 inches)

Conclusion
The H2-BP is a compact, reliable, and user-friendly device suitable for continuous blood pressure monitoring. It is designed to provide accurate readings by focusing on the radial artery and is supported by a smartphone app for easy data access.