Ventamatic XXDUOSTAT Adjustable Dual Thermostat/Humidistat Control for Power Attic Ventilators<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Provides energy efficient operation of power attic ventilators</li><li>Remove excess heat from an attic in summer and humidity in winter</li><li>Allows equalization of inside and outside attic temperatures</li><li>Adjustable temperature range from 50 degrees to 120 degrees Fahrenheit</li><li>Humidity range from 30 to 90 percent</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41PcWzCNLNL.jpg" noproxy>