TrolMaster Digital CO2 PPM Controller Beta-8

Feed CO₂ Only When Your Plants Can Actually Use It

The TrolMaster Beta-8 Digital CO₂ PPM Controller gives indoor growers a simple, accurate way to manage supplemental CO₂. A high-quality NDIR (Non-Dispersive Infrared) sensor reads CO₂ at canopy height in real time and automatically switches a regulator or generator on or off to hold your target range. A built-in photocell restricts dosing to lights-on periods, so no CO₂ is wasted during the dark cycle when plants are not photosynthesising.

Key Benefits

• Automatic CO₂ control of regulators or generators based on live PPM readings
• Photocell-gated dosing so CO₂ only runs during lights-on periods
• High-accuracy NDIR sensor (±50 PPM) for reliable monitoring
• Adjustable 400-2000 PPM range to suit any crop and stage
• Fuzzy-logic control for tighter precision with compressed CO₂ systems
• LED display for easy setup, with a 16ft (4.9m) sensor cable for flexible placement

CO₂ dropping off as soon as plants start pulling it in?

Once photosynthesis is running at full pace, CO₂ in a sealed tent or room can fall well below optimal fast, and low CO₂ caps vegetative growth, slows nutrient uptake and limits yield in flower. The Beta-8 keeps a live PPM reading at canopy height and brings your CO₂ device online the moment levels drop below the set point, then stops once the target is reached, so plants never run on a depleted atmosphere.

How to Use

1. Mount the CO₂ sensor near the plant canopy using the included cable
2. Connect the sensor to the Beta-8 controller
3. Plug your CO₂ regulator or generator into the controller outlet (maximum 10A)
4. Set the target CO₂ PPM range on the LED display
5. Adjust the deadband to control how tightly the range is held
6. The controller then doses CO₂ automatically to maintain the target level