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?Features:Measurement of blood saturation and pulseLarge LED display for easy readingA unique, very bright display - against the glare of the sunBiocompatible productEase of use: Just press the ON button once. / OFFPulse strength indicator- Ideal for evaluating oxygen therapy- Ideal for sleep apnea screening- Ideal for on-site inspection and continuous monitoring.This product is CE marked. This guarantees that European safety standards are met.