Smartwatches; Automatic pill counters; Computer monitors; Electronic locks; Flow switches for monitoring and controlling the flow of gases or liquids; Flowmeters used in a wide variety of fields; Level switches and level indicators for monitoring and controlling liquids in tanks and vessels; Liquid crystal display (LCD) monitors; Liquid level sensors; Notebook computer cooling pads; Photoelectric sensors; Radiation-measuring instruments; Security alarm controllers; Smart rings; Smartphone sta...