Vostermans Variable Speed Drive 10 Amp w/ Manual Override featured Includes a 2-year limited warranty

Includes a 2-year limited warranty

Internal minimum speed adjustment with possibility to work continuously at minimum speed

This Versa-Kool fan is the industry standard for greenhouse ventilation

Controller includes a single Digital Integrated Sensor Module (DISM) that measures temperature

The Max-Fan® is a more powerful and efficient fan that takes less energy to run

Vostermans Variable Speed Drive 10 Amp w/ Manual Override featured Includes a 2-year limited warrantyAvailable in three different models that have a 0 10 V or 4 20 mA input signal. Easy to access toggle switch to select manual or automatic mode as well as a manual speed selector dial on the faceplate. Internal minimum speed adjustment with possibility to work continuously at minimum speed. Comes in a rugged, sealed enclosure that protects from light, moisture and dust. Includes extended supply voltage range and a radio interference filter.