What is the function of the front fingertip sensor on BioSense?

The front sensor is a clinical-grade fingertip sensor typically found in medical oximeter devices. This front sensor is at the core of BioSense's high accuracy. It offers non-invasive and safe measurements of APG (measurement of vascular ageing), and Blood Pressure

Please note: 
  • Your index finger must be clean and dry, otherwise it may affect the accuracy of the measurement.
  • The APG service is only available if you have an active monthly subscription.
Does BioSense include the Guardian Alerts function?