ASHRAE's Building Readiness Team recommends verifi cation of ventilation control and encourages increasing outdoor ventilation rates. Many schools and restaurants are heated and cooled with small packaged systems (≤15 tons). Our duct or hood mounted thermal dispersion airfl ow measurement probes are perfect for retrofi t on existing HVAC equipment with or without economizers or B.A.S. They easily integrate with existing thermostats to control outdoor ventilation rates. GreenTrol Automation, Inc. * 156 Holly View Lane, Loris, SC 29569 * Toll Free: 877 4GNTROL (446 8765) * Internet: GreenTrol.comhttp://www.GreenTrol.com