Air conditioners keep a room at a comfortable temperature in and out of season. Given the ever-expanding market, research and development activities into energy-saving and high-efficiency air conditioners is continually being promoted. Satake's Calorimeter is indispensable for measuring the performance of air conditioners and assessing the achievement of R&D efforts. It is a psychrometric calorimeter for calorimetric measurement that is being developed based mainly on the air enthalpy measuring method. The Compressor calorimeter is also available, which is used for measuring refrigerating capacity of various types of independent compressors that are used in room air conditioners, car air conditioners and freezers. In addition to the above products, we offer various other products including a car air conditioner bench-testing device for simulating operation of car air conditioners.