How can wide-angle type or long-distance type be chosen?

Choose wide-angle type for close usage such as customersegment analysis of vending machines.
Choose long-distance type in case long distance is needed such as attention survey of digital signage.

Detection depends on the distance.
Therefore, please refer to Detection Distance from "Datasheet" on the page of HVC-P2 in OMRON E-web.
https://components.omron.com/us-en/products/sensors/B5T