hi @Bill Jackson . with current ASA implementation, that is not possible. https://learn.microsoft.com/en-us/azure/spatial-anchors/concepts/coarse-reloc#platform-availability summarizes the availability of the sensor data. If you are targeting Android/iOS, you are limited by each platform and phone sensors. On Android, starting with API level 28, Wi-Fi scans are throttled to four calls every 2 minutes. On iOS, you should have in mind energy efficiency.
to summarize, this is platform dependent. you might want to consider using BLE beacons placed through museum.
Claudiu