Portable instruments, usually equipped to also measure current and resistance in the form of a multimeter, are standard test instruments used in electrical and electronics work.

On instruments equipped with tuning machines, violins and guitars, for example, a key is part of a tuning machine.

When you approach one, you hear music featuring that instrument, thanks to headphones equipped with an infrared device.

On instruments equipped with steel strings, such as folk guitars and electric guitars, frets are eventually bound to wear down as the strings cut grooves into them.

A blood-sampling device, also known as a lancing device, is a reusable instrument equipped with a lancet.

Cystoscopes are tubular instruments equipped with lights and viewing devices used to examine the interior of the urinary tract.

To perform the abrasion, the doctor uses a high-speed instrument equipped with a wheel or brush to strip off the top layers of skin.

An instrument equipped for tandem MS can still be used to run MS experiments.

An instrument equipped for stadia work has two horizontal stadia marks spaced equidistant from the center crosshair of the reticle.

Since the mid-1980's, instruments equipped with Midi (musical instrument digital interface, which allows computers and instruments to be hooked together and synchronized) have transformed live music.