TrolMaster Legacy BETA-2 Day/Night Fan Speed Controller

TrolMaster Legacy BETA-2 Day/Night Fan Speed Controller


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TrolMaster Brand Product

Availability: In stock

Lead time: Due to high demand, this product ships in 3-4 weeks


BETA-2 is a simple and practical fan speed controller, which offers an efficient and affordable solution to control your fan of your grow room.

Choose your desired fan speed and temperature setpoint, when the temperature is lower than the setpoint the controller will automatically maintain that specified fan speedd. When the temperature is higher than the setpoint, the controller will output 100% power to the fan. When the temperature is lower the cut-off setpoint, the controller will shut down the fan. A built-in photocell located on the controller automatically detects the day and night status, controlling the fan in day.night mode separately. A remote temperature sensor with a 16' cable allowes close placement to the plant canopy.


  • Built-in Photocell detecting day and night status
  • LCD screen display simple to operate
  • Adjust fan speed from 25% to 100% of rated speed
  • Automatically increases or descreases fan speed based on setpoint
  • Temperature control range is 41°F to 95°F
  • Temperature sensor with 16' cable for close placement to the plant canopy
  • 3 year warranty


Input Voltage: 120 Volts AC
Output Switch: Triac
Fuse Rating: 6A/250V~
AC Power Cord Length 1.8m
Speed Control Range 25~100%
Temperature Accuracy: +/- 1°F
Packaging Dimensions: 275mm(L) x 87mm(W) x 94mm(H)
Gross Weight: 0.56kgs
Tech Specs


Weight (lb.)1.2
Lead TimeDue to high demand, this product ships in 3-4 weeks
Length (in.)10
Width (in.)3
Height (in.)3.7
Warranty3 Year
Prop 65No
UL ListedNo