There are AAA Alikaline batteries powered or the lithium battery operated version to choose from, this handheld pulse oximeter Prince-100F offers comprehensive and continuous monitoring of SpO2, PR, and PI. Featuring smart alarm, data replay, anti-motion interference, universal probe and light frequency blood oxygen, make it a professional measurement and recording device for use in hospitals, health clinics or home users that need to do daily monitoring of their medical condition.
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