Advanced Solutions Nederland and partners deploy Covid Buzzer, a social distancing solution at Amsterdam Johan Cruijff Arena (in Dutch):
Before the lockdown, the COVID Buzzer was extensively tested at the Johan Cruijff ArenA Tour. Even when the stadium doors reopen, the COVID Buzzer will contribute to safe tour attendance during times of COVID-19. The buzzer is a device that vibrates and flashes when someone comes within 1.5 meters of it based on Ultra-Wideband technology. An innovation that can also contribute to safe attendance at games and concerts.
Read more about the Covid Buzzer