Heat detectors are fire detection devices that sense heat produced by combustion.

Power quality analyzers measure and monitor electrical power parameters to avoid disturbances, track steady-state variations, and ensure the reliability of power distribution systems.

Speed controls, including speed regulators and rate controllers, are used to decelerate and regulate the speed of loads such as moving carriages and machining feeds near the end of their travel

Electro-optic modulators are analog or digital devices that use an electric field to alter the characteristics (e.

Triacs are three-terminal silicon devices that are configured in an inverse parallel arrangement to provide load current during both halves of the AC supply voltage.

Thermostats and thermal switches are electro-mechanical on/off switches that are activated by temperature changes.

Fiber optic receivers are instruments that convert light into electrical signals.