This book is an essential guide to mastering 3D printed electrochemical sensors, offering a comprehensive roadmap from foundational principles and fabrication techniques to cutting-edge applications and real-world solutions. The rapid advancement of additive manufacturing technologies, commonly known as 3D printing, has revolutionized various fields of science and engineering. Among these, the development of electrochemical sensors has particularly benefited from additive manufacturing’s unique capabilities. This book provides an exhaustive exploration of 3D printed electrochemical sensors, from foundational principles to cutting-edge applications. By meticulously detailing design considerations, fabrication techniques, and performance evaluation metrics, it offers readers a roadmap to navigate the complexities of this interdisciplinary domain. Furthermore, with its emphasis on real-world applications and case studies, the book ensures that the knowledge imparted is not just theoretical but has practical relevance. This comprehensive guide empowers readers to harness the potential of 3D printing in the realm of electrochemical sensing, driving innovations and solutions for real-world challenges. Readers will find the book: Provides an in-depth exploration of the design principles and fabrication techniques specific to 3D printed electrochemical sensors; Features knowledge to innovate and develop customized sensors tailored to specific applications, ensuring improved sensitivity, selectivity, and longevity of the sensors; Offers insights into calibration, sensitivity assessment, durability considerations, and validation protocols, highlights challenges in performance assessment, and suggests strategies to overcome them; Explores practical applications of 3D printed electrochemical sensors across sectors like medical diagnostics, environmental monitoring, and food quality control. Audience Researchers, academics, and professionals in the fields of additive manufacturing, electrochemistry, and sensor design.