# Scan - [Scanner](https://docs.thewalletcrew.io/scan/scanner.md): Select scanner hardware that reliably reads barcodes and QR codes from Apple Wallet and Google Wallet passes. - [Pass Scanner](https://docs.thewalletcrew.io/scan/crew-check.md): Pass Scanner lets staff scan Apple Wallet and Google Wallet passes to view and manage privileges in real-time for controlled access environments. - [Manage devices](https://docs.thewalletcrew.io/scan/crew-check/manage-devices.md): Manage the devices allowed to sign in to Pass Scanner, distribute their login QR codes securely, and revoke or rotate access when needed. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.thewalletcrew.io/scan.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.