---
title: signalInvalid
framework: sensorkit
role: symbol
role_heading: Type Property
path: sensorkit/srelectrocardiogramdata/flags-swift.struct/signalinvalid
---

# signalInvalid

An invalid sensor signal occurs in the ECG data.

## Declaration

```swift
static var signalInvalid: SRElectrocardiogramData.Flags { get }
```

## See Also

### Getting context or events

- [crownTouched](sensorkit/srelectrocardiogramdata/flags-swift.struct/crowntouched.md)