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Amazon.com: CONTEC Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor For Small Finger PR Value Waveform Oxygen Monitor with lanyard : Health & Household
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CONTEC CMS50F Wrist Finger Pulse Oximeter Fingertip SpO2 24Hour Monitor Recorder PR Blood Oxygen Saturation Sensor Rechargeable Color TFT Sound indication - Walmart.com
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