User friendly flow cytometry provides powerful sensitivity and resolution and ensures good performance and nano particle resolution. The cytometry has 21 available flexible configurations, future proof solution with built in system flexibility for easy upgrade option and good sensitivity and resolution for good fluorescence and nano particle detection. The cytometry is offered in compact design that makes it easy to learn, easy to operate, easy to maintain. The user friendly flow cytometry has versatile plug-n-play filters, integrated optics for alignment stability and accommodates 12 x 75 mm and microtiter tubes.