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A pulse oximeter is a small electronic device that estimates the saturation of oxygen in your blood. You want a number in the 95% to 100% range. If the number drops to 92% or lower, that's a cause for concern. That's generally the level where a doctor might put you on supplementary oxygen and keep you in the hospital for observation. Low Power Consumption Digital Technology Easy To Operate High Accuracy Small in Size
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🇺🇸 Ship from USA · On Agora since 2026
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