Shipping delay: 2-3 weeks
Automatic speed controller for fan. Perfect for air modulation in greenhouses, computer server centers, industrial buildings, farm buildings, etc. The automatic speed controller allows the fan speed (air quantity) to be modulated according to the temperature required in the room, avoiding the short cycling of the fan (fan going on and off with repetition). The case is water and corrosion resistant. Operation at 115 or 230V AC.
***Only works with fans built for variable speed application***
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