These switches have been designed for heavy duty applications, where the products should withstand vibrations or should have an exceptionally long life and repeat accuracy. Sturdy electrical elements, incast pin as a fulcrum to facilitate a smooth transition of bell crank lever for precise motion transfer, a wide scale (individually marked) with a specially designed rack and pinion system are its key features. Intended end uses can be large turbines, compressors, applications in thermal power plants, steel, cement and other such infrastructure industries. These switches can be configured with a lot of options like electrical elements and sensing element configurations to suit the intended working media.