The development in automated equipment has led to remarkable technical improvements, but with a large surge in automation, concerns for the safety of worker has also risen. In the past, equipment was much easier to run; it has gotten considerably more difficult through time. Workers have to go through sufficient training to utilize it, and there has to be qualified workers to fix the devices. In addition, while dealing with such huge and hazardous machinery, it is impossible to acquire reliable measurements. That is why instrumentation is extremely critical. This book is designed to provide the reader with the basic tools and techniques of the process of industrial instrumentation and control. The book starts with a comprehensive understanding of the instrumentation systems, types of instruments as well as its static and dynamic characteristics. It then goes on detailing the various sensors used for measuring parameters like strain, load, torque, displacement, pressure, temperature, flow rate, humidity, velocity etc. along with their working principles, limitations and applications. Visual aids and circuit diagrams have been also included for better understanding of the readers. The trailing chapters also detail about the signal conditioning of various circuits and filters used to monitor them. A chapter on Piezoelectric sensors has been also included which have grown in use in the current decades. Any person, whether a student or a professional in the field is welcome to read the book for strengthening the fundamentals regarding industrial instrumentation and control. A new comer seeking a career in the same field can refer to this book for the basic knowledge of the concepts needed to design these industrial instruments for measuring various parameters.