The DELab μCT-100 Micro Computed Tomography (Micro CT) is high-performance, high resolution 3D X-ray imaging system designed for in vivo small laboratory animals. It is supplied with auto recognizable animal beds of three sizes for rat, mice, and ex vivo samples. The fast-scan mode accelerates scanning cycle down to 2 seconds. Its high precision platform and motor system generates high resolution 3D images down to 2 μm pixel size. An anesthesia gas absorption system, a controllable warming chamber, as well as ECG, temperature, and camera monitors are integrated to monitor the wellbeing of the animal.