HOLFENRY Rechargeable Handheld Pulse Oximeter, Fingertip SpO2 & Heart Rate Monitor with Continuous Overnight Tracking, Alarm, Multi-User Storage

【Child-Friendly Strap-On Design】Unlike bulky fingertip oximeters, our innovative strap-on probe stays securely in place on children's fingers during sleep or play. The soft, adjustable strap ensures comfortable, continuous monitoring without slipping off—perfect for restless kids. 【10+ Hours Rechargeable Battery】Equipped with a high-capacity 2000mAh lithium battery and convenient charging base. One full charge provides over 10 hours of continuous monitoring—enough for overnight sleep tracking without worrying about power. 【High Accuracy】Measures SpO2 (±2% accuracy for 70-100%), pulse rate (25-250 bpm, ±1 bpm precision), and perfusion index. Features real-time plethysmogram waveform display for comprehensive health insights. 【Smart Alarms & Custom Settings】Set your own SpO2 and heart rate threshold alarms. The device alerts you immediately when readings fall outside safe ranges. Supports multiple user IDs, recording modes, and data management for family use. 【For Kids & Adults with Multi-Language Manual】Suitable for both pediatric and adult patients. Comes with a comprehensive user manual in English, German, Spanish, French, and Italian. Perfect for families, home care.