[Home](./index.md) > [@digitalpersona/devices](./devices.md) > [AcquisitionStarted](./devices.acquisitionstarted.md) ## AcquisitionStarted class An event signaling that a fingerprint reader is ready and waiting to scan a finger. Signature: ```typescript export declare class AcquisitionStarted extends DeviceEvent ``` ## Constructors | Constructor | Modifiers | Description | | --- | --- | --- | | [(constructor)(deviceUid)](./devices.acquisitionstarted.(constructor).md) | | Constructs a new event object. |