In modern power-ventilated poultry houses, producers need more than just a large dial thermometer to determine whether or not they are maintaining the ideal growing conditions. To maximize bird performance, while at the same time keeping energy costs to a minimum, producers need to know wind speed, relative humidity, static pressure as well as be able to see how air is flowing in their houses. But, to do this producers must have the right equipment. Listed below are examples of a few tools produ...cers may want to consider purchasing. Also included are approximate costs, as well as a few sources for these tools. Obviously, these costs are subject to change and other similar equipment from different manufacturers and suppliers may be available.