> ## Documentation Index > Fetch the complete documentation index at: https://docs.assetinfinity.ai/llms.txt > Use this file to discover all available pages before exploring further. # Scan > Finding the machine in front of you — by camera, or by typing when the camera is not available. You are standing at a pump and you want that pump's job. Typing an asset number on a handset with gloves on is the worst way to get it. The Scan screen on the field app ## Two ways in * **The camera**, where the handset's browser can decode a barcode. * **Typing**, which always works. ## The typing path is not a fallback Barcode decoding in the browser is not available everywhere — it depends on the handset and the browser. Shipping only the camera would mean a screen that does nothing on some phones; shipping only typing would mean a scanner that never scans. You get both, and the camera is offered where it exists. ## The search is local Scanning searches the assets and jobs **already on the device**. That is the whole point — a scanner that needs a network is a scanner that fails in the plant room where the label is. ## What you can find * **Assets**, by asset number or barcode. * **Work orders**, by number. Finding an asset shows what is open on it, so scanning a machine while standing at it answers "is somebody already on this". ## If nothing is found Either the label does not match anything on this handset, or the record has not synced yet. Check the **Sync** tab — a job assigned to you five minutes ago will not be on the device until it has had signal. ## Labelling Asset numbers are yours. Whatever you print on the label — barcode or plain text — needs to match the asset number in the register for scanning to find it. ## Related topics - [The field app](/field/overview.md)