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SD2

The SD2 value is sent as part of the final results.

The application can receive the SD2 result by implementing VitalSignsListener:

Swift
func onFinalResults(results: VitalSignsResults) {
    DispatchQueue.main.async {
        if let sd2 = results.getResult(of: VitalSignTypes.sd2) as? VitalSignSD2 {
            print("SD2: \(sd2.value)")
        }
    }
}
Objective-C
- (void)onFinalResultsWithResults:(BIOVitalSignsResults *)results {
    dispatch_async(dispatch_get_main_queue(), ^{
        BIOVitalSignSD2 *sd2 = (BIOVitalSignSD2 *)[results getResultOf:BIOVitalSignTypes.sd2];
        if (sd2 != nil) {
            NSLog(@"SD2: %ld", (long)sd2.value);
        }
    });
}

For general information about vital signs see the Vital Signs and Health Indicators Information Document.

For a list of supported vital signs by platform and measurement mode (face/polar), along with their required measurement durations, refer to the Indicators Technical Information page.

Important

Note that vital signs are sent on a background thread. The application must switch to the UI thread in order to perform UI updates.