Finger Pulse Oximeter OLED Display Sp02 Reading Oxygen Meter Heart Rate Monitor

We will reply you within 24 working hours. Battery model: 2 × 1.5 V (2 AAA alkaline, batteries not included). Atmospheric pressure: 70 kPa – 106 kPa. Storage humidity: 15 % – 80 % (working); 10 % – 80 % (storage).

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