What type of device is an otoscope?

An otoscope is specifically designed for examining the ear, making it an essential tool used by healthcare professionals to inspect the external auditory canal and the tympanic membrane (eardrum). It allows for visualization of the ear structures, helping to diagnose conditions such as ear infections, wax buildup, or abnormalities in the ear canal.

While other devices mentioned serve important purposes—such as measuring blood pressure or recording heartbeats—they are designed for different functions entirely and do not pertain to ear examination. The term "apparatus for visual checks" is broad and can refer to various instruments used for different types of inspections, further emphasizing the specific role of the otoscope in otology (the study of the ear).