The Multi Phase Digital Fan Speed Controller from Global Air Supplies is a thermostatically controlled fan speed controller for digital fan motors such as the Hyper Fans and Stealth Hyper Fans from Phresh.
Unlike other fan motors, digital fan motors require a fan controller specifically for digital fans. These Multiphase Digital Fan Speed Controllers come with a digital display to set your desired temperature, show the actual temperature as well as show what percentage your fans are running at. The left dial on the controller controls the minimum speed at which your fans will run at when desired temperature is achieved.
A y-piece is available to attach to the unit that enables you to control two fans from one outlet on the controller. A fan speed balancer is also available as an add on if you have two fans that are not ideally suited to be used together. For example, if you are using two fans that are the same in terms of air movement you will want to give more power to the outlet as the filter attached to the outlet will reduce its flow. The Fan Balancer will enable you to create a small amount of negative pressure in your grow space so all of the air coming from your grow room will be passed through your filer, ensuring there are no unwanted odours escaping whilst not putting too much strain of either of your inlet or outlet fans.