The phrase "device consisted of" is correct and can be used in written English.
You would use this phrase when discussing a device that is composed of multiple parts. For example: "The device consisted of four different components that all had to be assembled properly for it to operate correctly."
This device consisted of a kind of automatic typewriter, called an autotypist, that could store and reproduce simple documents.
The framing device consisted of Bach's three sonatas for viola da gamba and keyboard, which the players have recorded for Orfeo.
This clever device consisted of four interconnected RAF bomb control units – mysterious looking black boxes with lots of knobs and switches – that were sensitive to voltage fluctuations.
This device consisted of a number of horizontal sails that were mounted on a vertical shaft and driven by the hot air rising from a chimney.
Known as a "pile," this device consisted of an array of uranium and graphite blocks and was built on the campus of the University of Chicago.
Invented by James Watt in England, this device consisted of a weighted ball on a hinged arm, mechanically coupled to the output shaft of the engine.
The device consisted of a tiny bed of electrodes — not electrons — that were surgically implanted on her motor cortex and connected by a wire to a computer.
Another piece of the device consisted of a pair of wraparound sunglasses with a mini-camera mounted on the bridge; the camera was attached to a wallet-size computer connected to a coil taped above the ear.
The experimental device consisted of two vertical electric furnaces as shown in Fig. 1.
The designed device consisted of top cover, sleeve, and working platform.
The device consisted of a passive DMFC monopolar three-cell stack.
