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These advances in air sensor technology are providing new tools including low-cost air pollution monitors for assessing indoor air pollutants and other indoor environmental factors

Detect and prevent cigarette smoking with Halo Smart Sensors The Halo Smart Sensor is an all-in-one solution designed to help property owners and administrators detect cigarette smoke, vaping and THC in areas where video security and IP cameras are not feasible, such as restrooms, changing rooms and non-communal living spaces

Human alpha4beta2 acetylcholine receptors formed from linked subunits

This nice colored or white chalk is great for blackboards