Multisizer 4 COULTER COUNTER® is one of the most versatile, efficient and precise particle sizing and counting analyzer on the market. Making use of the Coulter Principle, also known as Electrical Sensing Zone (ESZ), this device provides size distributions in number, volume and surface area in one measurement, with an overall sizing range from 0.4 µm to 1600 µm. its response remain unchanged by particle color, shape, composition or refractive index. The Coulter Principle is the foremost technology in high resolution and accurateness. The high resolution and accuracy is enhanced even further by Multisizer 4 that utilizes the service of Digital Pulse Processor (DPP). This service offers ultra-high resolution, multiple channel analysis and accuracy that is unachievable by any other technologies. All these qualities make Multisizer 4 a necessary tool for any research project that requires sizing and/or counting. Further, it can be used for quality control as well with its easy-to-use system.