---
title: HMCharacteristicValueSecuritySystemAlarmType
framework: homekit
role: symbol
role_heading: Enumeration
path: homekit/hmcharacteristicvaluesecuritysystemalarmtype
---

# HMCharacteristicValueSecuritySystemAlarmType

Possible trigger states for an alarm.

## Declaration

```swift
enum HMCharacteristicValueSecuritySystemAlarmType
```

## Topics

### Alarm Types

- [HMCharacteristicValueSecuritySystemAlarmType.noAlarm](homekit/hmcharacteristicvaluesecuritysystemalarmtype/noalarm.md)
- [HMCharacteristicValueSecuritySystemAlarmType.unknown](homekit/hmcharacteristicvaluesecuritysystemalarmtype/unknown.md)

### Initializers

- [init(rawValue:)](homekit/hmcharacteristicvaluesecuritysystemalarmtype/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)