A clip placed on a fingertip shows blood oxygen saturation and pulse within seconds — figures that are watched closely during a respiratory illness or with chronic lung problems. The choice is small and specific: the Medisana PM 100, which connects to a phone, and two Rossmax fingertip models, including the SB200 ACT version. All the devices are pocket-sized, so they are easy to take with you.
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A clip placed on a fingertip shows blood oxygen saturation and pulse within seconds — figures that are watched closely during a respiratory illness or with chronic lung problems. The choice is small and specific: the Medisana PM 100, which connects to a phone, and two Rossmax fingertip models, including the SB200 ACT version. All the devices are pocket-sized, so they are easy to take with you.