Flow measurement of fluids like water, process chemicals or mixture of chemicals within a running system in any process industry is a very critical and a monotonous task, & needs to be checked time to time for proper functioning of a system. Water flow balancing in a HVAC system is very important, in order to get proper cooling in a particular space. Also, for an auditor who performs water audits very frequently a handy portable system is required, which is easy to carry around & can record data.