Equipment which projects an image on a screen by passing light through a transparent slide or other transparency.

Is an alarm system.

A physical object for detecting the presence of objects at a distance, or ascertaining their position or motion, by transmitting short radio waves and detecting or measuring their return after being reflected.

A radio transmitter, usually non-directional, that emits identifiable signals intended for radio direction-finding.

Is a piece of hardware intended to read and decode information encoded on a carrier.

A process control unit that can be operated in remote.

A router is a computer networking device that forwards data packets toward their destinations through a process known as routing. Routing occurs at layer 3 (Network layer) of the OSI seven-layer model.

A system that provides voice and telefax communication via satellites.

A physical object that is capable of receiving a signal and where the signal can be stored, recorded or converted into a useful form.

A device with one input and at least two outputs used for dividing a detectable transmitted energy (as a voltage, current, or magnetic field strength) by which information can be transmitted.

A detecting instrument that is intended to measure the upload and download speed of an internet connection.

A device that transfer data between a computer and a magnetic tape.

In a communications network, a network node equipped for interfacing with another network that uses different protocols.

A transceiver that transmits a signal automatically in response to an appropriate triggering signal.

Is a sterilizer intended to make use of ultraviolet light.

A regulator designed to automatically maintain a constant voltage level.

A power transformer of which the magnetic circuit and windings are immersed in oil.