Abstract: The present subject matter further relates to a box-type portable flow rate metering device for measuring flow rate of multiple fluids of varied viscosities while being supplies to form a final mixture. The device includes a flow meter which is detachably arranged per feed line to measure a flow rate of respective fluid during each operation cycle; and a digital display unit coupled to the respective flow meter to display the flow rate of the respective fluid during each operation cycle.

Abstract: An improved flow rate metering device that provides for the mixing and dispensing of two or more fluids to form final mixture, for example, for automatic washing of cars and trucks. More specifically, the invention is a system that mixes and ejects chemicals, creating a very precise mixture of one or more chemicals with a dilutant, such as water. The device also has the capability of monitoring an entire chemical dilution and release system, comprising multiple chemicals, and using software to document past and current usage rates, along with predicting future usage rates based upon both past usage rates and environmental conditions.

Abstract: The present subject matter further relates to a flow rate metering device for measuring flow rate of multiple fluids of varied viscosities while being supplies to form a final mixture. The device includes a flow meter arranged on each of the plurality of feed lines of multiple fluids to measure a flow rate of respective fluid during each operation cycle; and a digital display unit coupled to each of the flow meters to display the flow rate of respective fluid during each operation cycle.