The FC-BCM-G is a Adiabatic bomb calorimeter that is ideal for electrical power, coal, papermaking, petrochemical, cement, farming, medical research, and instruction to measure the Calorific Value of combustible materials. This device has a built-in heater and cooler that maintains the temperature of outer bucket at a constant level. After the operator puts the sample-filled oxygen bomb on the pothook, all of the other processes is on automatic so the the laboratory can be kept clean. The apparatus was configured with a cycling stirring facility, the outer bucket keeps a uniform temperature. The temperature resolution of the device is 0.0001℃ while Temperature testing range: 5℃~40℃. It only needs 5 minutes testing time on its RSD≤0.1% precision in its Isothermal Mode & Precision Mode.