[Home](./index.md) > [@digitalpersona/devices](./devices.md) > [SamplesAcquired](./devices.samplesacquired.md) > [(constructor)](./devices.samplesacquired.(constructor).md) ## SamplesAcquired.(constructor) Constructs a new event object. Signature: ```typescript constructor(deviceUid: string, sampleFormat: SampleFormat, sampleData: string); ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | deviceUid | string | a fingerprint reader ID. | | sampleFormat | SampleFormat | a fingerprint sample format. | | sampleData | string | raw sample data received with WebSdk notifiation. |