Primair,Twin Speed Fan Controller,Temperature Range 14-36 degrees
The new Primair twin speed fan controller with thermostat and probe is the ultimate in simple climate control. It consists of two separate intake and exhaust speed dials that are thermostatically controlled. Simply set fans at the appropriate idle speeds to control room temperature and set the thermostat at what you want your maximum temperature (IE to be 28 degrees). If the room hits your maximum temperature setting the fans automatically switch to full output until the environment drops back under your maximum temperature setting and your fans will then again automatically return to idle speed as set on the speed dials.
