The LA-960by Horiba Scientific is a portable laser particle size analyzer which features its accuracy and reliability. For this specific model, it still adapts the previous features and combined it with the latest which is the strong point of submicron range measurement capability. Also, it increases its data algorithm for meeting the requirements of customers which demands superior accuracy and resolution. The unit is fully supported with latest technology having a dynamic wide measurement range of 0.01 to 5000 microns which are 300 microns in wet method. For efficient data analysis, it uses a 3 dimensional data simulation that generates a scattered light patterns which makes an original optical layout for easy calculations. With this ability, the user can directly compare a certain result to the theoretical result.