Beacon technology (events)

Beacons are the workhorse hardware of event location features: cheap, battery-powered, and stickable to any wall or stand. Each one broadcasts an identifier; the event app hears it and infers "this phone is near this spot," which unlocks the practical wins — automatic session attendance counts without badge scanning queues, dwell-time data by zone, a welcome message that fires at the entrance. Exhibitor-facing uses have real commercial pull too, since proximity data ("412 app users passed your stand, 96 lingered") is the kind of evidence that supports renewal conversations. The honest constraint chain is worth knowing before budgeting: beacons only see attendees who installed the app, granted Bluetooth permission, and granted location permission — each step loses a share of the audience, so beacon data describes a sample, not the crowd. Quote it as a sample or exhibitors will eventually catch the gap and distrust everything else you report. Operationally, beacons need placement planning, battery checks before doors, and someone to notice when a contractor moves one. The common mistake is the notification-spam temptation: firing a promo every time someone walks past a sponsor's beacon is the fastest known route to disabled notifications. One honest nuance: beacon hype peaked years ago and quietly deflated — the technology works, but treat it as plumbing for specific measurable uses, not the magic attendee-experience layer it was once sold as.