Abstract: A sensor system comprises a sensor housing, a sensor contained within said housing, said sensor being configured to detect one or more characteristics of a passive tag or of a physical object representative of a specific product; wherein the sensor system further comprises a user interface, a data store for storing signals detected by said sensor, and a processor for processing said detected signals; the processor being further configured to present via the user interface the option of purchasing a specific product to the user of the sensor, the signals being simultaneously representative of the product and of a point of retail where detection was initiated, wherein said system further comprises a purchasing system for purchasing the specific product; and a communication link between the purchasing system and a brand owner who facilitates the dispatch of the specific product to a destination specified by the user of the sensor.