Vape detection can set off signage or lights outside toilets

https://www.fox2now.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 can set off signs or lights outside restrooms, signaling short-lived checks without revealing the identity of any trainee.