What is Smoking Detection Technology? Can You Vape in Hotel Rooms? Policies & Smarter Alternatives Electronic Cigarettes Undercover: 4 Ways Hotels Know You're Vaping And How To Avoid Getting Caught Volf Bar Hotel Vape and Smoke Detector Halo Smart Sensor A pair of hackers found that a vape detector often found in high school bathrooms contained microphonesand security weaknesses that could allow someone to turn it into a secret listening device. I was reading a post from about a year ago. About the legitimacy of hotels having silent vape alarms. Well I just found one in my hotel. Discreetly attached to the back