Vape detection gadgets can send out both silent and audible alerts

https://www.kdvr.com/business/press-releases/globenewswire/9676076/zeptive-software-update-boosts-vape-detection-performance-and-adds-new-features-free-update-for-all-customers-with-zeptives-custom-communications-module

Vape detection devices can send out both quiet and audible notifies, enabling schools to pick discrete notifications or on-site deterrence strategies.