EcoTechnics Evolution PPM Controller - Automated CO2 Level Control for Indoor Grow Rooms
Best for: Growers already running supplemental CO2 who want to automatically maintain a target ppm level rather than releasing gas manually.
Our thoughts
This is the piece that ties a CO2 setup together properly, rather than guessing when to open the valve, it reads your target level and controls the release for you. It's a step up in cost and complexity from just running a regulator on its own, and it's worth it once CO2 becomes the thing actually limiting your growth rather than light or nutrients.
The EcoTechnics Evolution PPM Controller manages CO2 supplementation in an indoor growing environment by connecting to a CO2 regulator and solenoid valve, or a propane gas burner, and controlling when and how much CO2 is released to maintain a target parts-per-million ppm level in the room.
CO2 supplementation is generally the next step once other growing conditions, light, nutrients, temperature and humidity, are already well dialled in, at that point CO2 availability itself can become the limiting factor on growth rate. Rather than manually opening a cylinder and guessing at timing, the controller automates the process, working alongside an EcoTechnics CO2 Analyser and Regulator, or a compatible propane burner, to keep levels consistent without you needing to check in constantly.
How it compares
Automated CO2 controllers sit at the more advanced end of grow room environmental control, alongside a small number of established names.
- Performs the same core role as controllers from Titan Controls (CAP) and TrolMaster in the CO2 supplementation space, automating release based on a target ppm setpoint.
- Works as part of the wider EcoTechnics Evolution range, Analyser and Regulator, giving a matched system rather than mixing components across brands.
- A step up in cost and control over simply running a CO2 regulator manually or on a basic timer, which can't respond to actual measured ppm levels.
If you're ready to properly automate CO2 rather than guess at dosing, this is a straightforward way into that, and it's built to work with EcoTechnics' own Analyser and Regulator as a complete system.
Usage guidance
Getting the most from a CO2 controller means having the rest of your CO2 setup dialled in too.
Connecting your system
Wire the controller to your CO2 regulator and solenoid valve, or compatible propane burner, following the included instructions, and pair it with a CO2 analyser for accurate ppm readings.
Setting your target ppm
Most indoor growers run supplemental CO2 in the 1000-1500 ppm range during lights-on periods, set your target within the range recommended for your grow stage and ventilation setup.
Ventilation timing
Make sure CO2 release is timed to periods when extraction isn't actively venting the room, otherwise you're supplementing gas that immediately gets pulled straight back out.
Monitoring
Check the controller and analyser readings periodically, especially after any changes to room size, ventilation rate or plant density, since your effective ppm will shift with those changes.
Technical specifications
- Product type: CO2 controller
- Function: Maintains a target CO2 ppm level automatically
- Compatible with: CO2 regulator and solenoid valve, or propane gas burner
- Part of range: EcoTechnics Evolution CO2 system, works with Evolution CO2 Analyser and Regulator
- Use case: Supplemental CO2 dosing in sealed or semi-sealed grow rooms
- Control type: Automated, ppm-based
Who this is for
- Growers who've already dialled in light, nutrients and climate and want to push growth further with CO2
- Anyone running a sealed or semi-sealed grow room where CO2 depletes during lights-on hours
- Growers currently dosing CO2 manually who want consistent, automated control instead
- Anyone building out a full EcoTechnics CO2 system alongside the Analyser and Regulator
Our take
This is the component that turns a basic CO2 cylinder-and-regulator setup into something you can actually rely on to hold a consistent level, rather than checking on manually. It's an investment, but it's the right next step once CO2 is genuinely your limiting factor.
Pairs properly with EcoTechnics' own Analyser and Regulator for a complete, matched system. Proper kit for growers ready to take CO2 seriously.
