Modern sensor technology is having an increasingly positive impact on all stages of food production from agriculture through animal welfare and veterinary medicine to food quality control and pathogen detection. Technologies employed range from hyperspectral imaging using drones to inground sensors for water and soil nutrients to Point-of-Care sensors for identifying pathogens in animals and food. Data analysis is utilised for imaging, IoT networks, with AI and Blockchain fulfilling essential roles. The control of the impact of agriculture and food production on the environment are now recognised requirements where sensors play an essential role.