[Home](./index.md) > [@digitalpersona/devices](./devices.md) > [DeviceDisconnected](./devices.devicedisconnected.md) > [(constructor)](./devices.devicedisconnected.(constructor).md) ## DeviceDisconnected.(constructor) Constructs a new event. Signature: ```typescript constructor(deviceId: string); ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | deviceId | string | a device ID. |