The 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.


  • LED Display, Easy Operation
  • Fan Speed Control Range 25-100%
  • Built-In Photocell Detecting Day/Night Status
  • Increase or Decrease Fan Speed based on Setpoint
  • Temp Sensor with 16ft Cable for Close Placement to Plant Canopy



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

Package Dimensions: 275mm(L) x 87mm(W) x 94mm(H)

Gross Weight: 0.56kgs



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