---
title: HMCharacteristicTypeModel
framework: homekit
role: symbol
role_heading: Global Variable
path: homekit/hmcharacteristictypemodel
---

# HMCharacteristicTypeModel

The model of the accessory.

## Declaration

```swift
let HMCharacteristicTypeModel: String
```

## Discussion

Discussion The corresponding value is a string.

## See Also

### Deprecated characteristic types

- [HMCharacteristicTypeManufacturer](homekit/hmcharacteristictypemanufacturer.md)
- [HMCharacteristicTypeFirmwareVersion](homekit/hmcharacteristictypefirmwareversion.md)
- [HMCharacteristicTypeSerialNumber](homekit/hmcharacteristictypeserialnumber.md)