When I heard a nurse at my uncle's bedside discussing the way the hospital has such pinpoint control over the temperature for so many different areas, I was impressed. It seems that they have implemented a system from FreshLoc Technologies that uses a state of the art monitoring system to remotely control every area. She went on to explain that they do this with wireless sensors and sevice all types of clients from meat lockers to hotels. I was floored when she said that they now control over ten million thermostats simultaneously. Can you imagine?