Instruments for measuring spray nozzle performance, flow rates of liquids and gases, energy output, temperature; computer hardware for operating spraying equipment for industrial applications, namely, cleaning, coating, cooling, humidification, marking, the application of water, glazes, lubricants, release agents, adhesives, and other raw materials and ingredients, and for agricultural spray operations, namely, herbicide, pesticide, fertilizer, and watering applications; spray testing instrum...