alcoholometer [alcoholometers](Specialized form of hydrometer used to measure amount of alcohol in liquid) noun [UK: ˌælk.ə.hɒ.ˈlɒ.mɪ.tə] [US: ˌælk.ə.hɔː.ˈlɑː.mɪ.tər]
breathalyzer [breathalyzers](a device that measures alcohol in expired air) noun [UK: ˈbre.θə.ˌlaɪ.zə] [US: ˈbre.θə.ˌlaɪ.zə]