Rota Engineering Ltd.

Rota Engineering designs and manufactures the smallest, most robust linear transducers for position control/monitoring of hydraulic cylinders. These sensors have been specifically designed for the mobile hydraulic cylinder market to withstand both physical abuse and exposure to dust, water, etc. In addition to internal sensors, Rota has a patent applied for technology where the sensor can be mounted externally which is designed for double rod steering cylinders and longer stroke cylinders. 

Rota Engineering Ltd discusses multi-parameter sensor (position, temperature, pressure, velocity) in "To simplify or not to simplify, that is the question" 

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