The BETA-8 CO2 controller offers a precision CO2 NDIR sensor / controller in an affordable easy-to-use package. The BETA-8 features a high-quality remote CO2 sensor (with 16ft cable) and built-in photocell to automatically activate your supplemental CO2 system to maintain CO2 PPM levels only during daylight hours. The BETA-8 also has adjustable dead band and min-max recall. It also has a ‘fuzzy-logic’ feature which will more accurately control compressed CO2 systems. The CO2 sensor can be easily re-calibrated and will continue to operate accurately for many years.


  • LED Display, Easy Operation
  • Built-In Photocell Detecting Day/Night Status
  • Alternative Humidifying or Dehumidifying Function
  • CO2 Sensor with 16 ft Cable for Close Placement to Plant Canopy



Input Voltage: 120 Volts AC

Output Relay Rating: 10A

Fuse Rating: 6A/250V~

AC Power Cord Length: 1.8m

CO2 Control Range: 400-2000 PPM

CO2 Dead band Range: 20-200 PPM

CO2 Accuracy: ±50 PPM

CO2 Sensor Type: NDIR (Nondispersive Infrared)

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

Gross Weight: 0.56kgs



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