This is a portable /handheld battery operated flow meter. It is a versatile flow meter for flow metering of liquids such as raw water, chilled water, potable water, D. M. Water, oils, organic solvents etc. Want to check your pump efficiency? Want to balance outputs of paralleled Pumps for best discharge ? - TR600H is the best product. It is moderately priced and with a short payback period, We offer compact rugged Carry case , easy for energy auditors to take it around places. Please specify : Application, Pipe sizes of interest,Liquid type& temperature to work out best price.