Honeywell M9164A1005 is an adjustable, continuous opening high-performance air dampdamper actuator used to control the flow of air and other fluids within heating and cooling systems. It provides accurate and independent control of modulating dampers by using a single-pole, double-throw switch and adjustable angle construction. Designed for flexibility, the Honeywell M9164A1005 allows for improved system performance with higher control accuracy and better efficiency. Plus, the built-in position-sensing microswitch ensures reliable operation in even the toughest industrial applications. With Honeywell M9164A1005, you can be sure that your air dampers are always operating at peak levels.