Sensors is a broad subcategory of hardware components responsible for collecting data from a robot's environment, mechanisms, and electronic systems. It encompasses distance, position, pressure, temperature, voltage, current, contact, and numerous other sensor types. This subcategory applies when a component is sensory in nature but does not belong to a more specific group such as LiDAR or Vision Components.

A tactile sensor is designed to detect physical contact, pressure, force distribution, and other touch-related properties. In robotics, it is particularly important in dexterous hands, grippers, manipulators, and human–robot interaction systems. It enables contact detection, grasp force control, pressure distribution recognition, and improved manipulation precision and safety. Tactile sensors are a key component in the development of haptic perception and more natural robot–environment interaction.