A damper intended for closing off parts of a ventilation system.

An electric signal transducer that is intended to convert one type of standardized transmission signal into another.

An acoustic device producing a loud sound as a signal or warning.

A slide valve that is equipped with an actuator that manipulates a stream of fluid in the response to a signal from an external sensing element and with input of energy from an external source.

A detector that is intended to sense smoke.

A panel and a photovoltaic module whose main parts are solar cells.

An electromagnetic coil, which is a cylindrical coil, the length of which is much greater than its transverse dimensions and which is used to produce a magnetic field.

A valve that has linear action which is fitted with a solenoid for quick operation.

An analyser intended to determine a mixture of solid particles in liquids or solid or liquid droplets in air.

A meter intended to measure a sound pressure level.

An analyser intended to determine specific gravity's of materials. Typically of liquids.

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

A switch intended to give a on/off signal when the speed have reached a pre-set value.

A transmitter that is producing a standardized output signal dependent of a received input signal from a rotational speed sensor.

A thermodynamic turbine in which steam is made to do work by expanding so as to create kinetic energy by acting on moving blades attached to a disc or drum.

An electrical connector capable of withstanding submersion to a specified depth.

A physical object that is protecting against a large but momentary increase in the voltage of an electric circuit.

A switchgear and controlgear bearing a set of switches for connecting and disconnecting the various circuits of an electrical system, as of a telegraph, telephone, etc.

A physical object that is a general term covering switching devices and their combination with associated control, measuring, protective and regulating equipment, also assemblies of such devices and equipment with associated interconnections, accessories, enclosures and supporting structures.

A physical object that converts sound signals into corresponding variations of electric current (or potential), which is transmitted by wire or radio to a distant point where it is reconverted into sound.

A detector intended to detect temperature.

A gauge that is intended to measure and indicate a temperature.

A regulator that is intended to keep a temperature within certain boundaries.

A functional switch that is intended to give an on or off signal when the temperature have reached a pre-set value.

A transmitter that is producing a standardized output signal dependent of a received input signal from a temperature element.