Hotels Increasingly Using Sensors to Detect Smoking Fees Vape Detector UAE False positives in vape detectors are a common concern, particularly when the devices are placed in environments with factors that can Instagram 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 Can Hotels Detect Vaping Marijuana Can Hotels Detect Vaping In Rooms Can Hotels Detect Vaping Smell