TrolMaster - Legacy Beta Series Digital Controller (Day/Night Fan Speed) ac-dehumidification-humidification Tarp Zip-Up's zipper is very

Tarp Zip-Up's zipper is very unique in that it solves the problem of creating a secure and easy to install door into sealed off areas and plastic film structures

State-of-the-art electronics throughout

NOTE: Use only with ball-bearing inline/centrifugal fans

OMRI-listed for organic use

TrolMaster - Legacy Beta Series Digital Controller (Day/Night Fan Speed) ac-dehumidification-humidification Tarp Zip-Up's zipper is veryThe BETA 2 can control variable speed fans by using the current temperature to increase or decrease the fan speed. By increasing the fan speed, cooling is increased decreasing fan speed will reduce cooling capacity. Using the BETA 2 in this way provides a VERY economical and efficient way of dealing with heat within an enclosed space. Features: Digital Display Built in Photocell sensor Day Night Control Included In Box: 1 x Fan Controller 1 x