Respironics Compatible Disposable SpO2 SensorBox of 24 Please note that some Respironics 920 models use Nonin SpO2 technology (the SpO2 connector will say "Nonin"), in this case, if the connector has 7 female holes order item S403 08T0 if the connector has 9 female holes order item S503 080. Compatibility: Manufacturer Model Healthdyne Tidal Wave 710Sp, Tidal Wave 715Sp Novametrix 512, 513, 710, 715, MARS Respironics 920, 920M, 920M Plus
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