Ac•T diff is the foremost device in its performance and principles. The compactly designed device is inexpensive. It contains the power of the Beckman Coulter’s proven histogram differential technology. The device is perfect for labs functioning up to 50 CBCs a day. So, it is very popular for low volume requirements of the physician office labs and smaller laboratories now-a-days. The device encompasses a range of features including one step sample processing with touch screen user interface, automated probe wipe to clean probe safely and small 12 µL sample size to allow total blood analysis from both venous and capillary collections. Compact Ac•T diff can be put anywhere and it produces outcomes within 60 seconds. No need of routine maintenance and reliability is so high to reduce costs. It can manage data efficiently with patient and control storage. A veterinary software is there as option.