Baby monitors; Electronic access control systems for interlocking doors; Electronic animal confinement systems; Instruments for measuring length; Measuring rulers; Megaphones; Microscope condensers; Microscope objectives; Microscopes; Personal security alarms; Personal security alarms that connect to a wireless communications network; Welding helmets; Electronic weighing scales for kitchen use; Kilometer recorders for vehicles; Lenses for welding helmets; Radiation-measuring instruments; Resi...