[Home](./index.md) > [@digitalpersona/devices](./devices.md) > [FingerprintReader](./devices.fingerprintreader.md) > [getDeviceInfo](./devices.fingerprintreader.getdeviceinfo.md) ## FingerprintReader.getDeviceInfo() method Reads a fingerprint reader device information. Signature: ```typescript getDeviceInfo(deviceUid: string): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | deviceUid | string | a fingerprint reader ID. | Returns: `Promise` a promise to return a device information. The promise can be fulfilled but return `null` if the reader provides no information. The promise will be rejected if a reader is not found or in case of a reading error.