About the CO₂ Controller
Closed, air-conditioned rooms trap the CO₂ people and mushrooms breathe out. Most CO₂ meters only show a number; the MychoAI CO₂ Controller also acts on it, switching a fan on when CO₂ is high and off when fresh air has done its job.
It is the same device for a grow room, a classroom or a gym — only the ON and OFF levels change. Readings go to MychoCloud so you can check any room from your phone and download records any time.
Simple, automatic, reliable
Monitor
The NDIR sensor measures CO₂, temperature and humidity every few seconds and shows them on the display.
Switch on
When CO₂ rises above the Fan ON level (default 1,000 ppm) the built-in relay starts the fan.
Switch off
Once fresh air brings CO₂ down to the Fan OFF level (default 800 ppm) the fan stops, saving energy.
Everything it does for you
Accurate sensing
- NDIR CO₂ sensor with automatic baseline correction
- Temperature and humidity on the same unit
- Wide-range version up to 20,000 ppm for mushroom rooms
- Optional CO sensor for basement parking
Automatic fan control
- Built-in relay socket for a fan up to 700 W
- 0–10 V output for fan VFDs and dampers
- Adjustable ON / OFF levels to avoid rapid cycling
- Auto / Off / On override switch on the front
Easy to use
- Clear display with green, amber and red indicator
- Four-button menu, no software needed to set up
- Beeper alert at a level you choose
- Plug-and-play: plug the fan into the controller
Cloud & records
- Live CO₂, temperature, humidity and fan status online
- Graphs from 1 hour to 30 days, total fan run-time
- One-click Excel export for audits
- Many rooms and sites under one login
Default settings
Every level can be changed from the front buttons or the app. Suggested levels for each space are listed on our Industries pages.
| Setting | Default | Adjustable range |
|---|---|---|
| Fan ON level | 1,000 ppm | 400–20,000 ppm |
| Fan OFF level | 800 ppm | Below Fan ON level |
| Beeper alert | 1,500 ppm | Any level or off |
| Minimum fan run time | 2 min | 0–30 min |
| Manual override | Auto | Auto / Off / On |
Technical details
Measurement
| CO₂ sensor | NDIR, 400–10,000 ppm (20,000 ppm farm version) |
|---|---|
| CO₂ accuracy | ±(50 ppm + 5 % of reading) |
| Temperature | 0–50 °C, ±1 °C |
| Humidity | 0–95 % RH, ±3 % RH |
Outputs
| Fan relay | Socket output, max 3 A / 700 W |
|---|---|
| Analog | 0–10 V for VFD or damper (optional) |
| Alarm | Built-in beeper |
Hardware
| Display | Backlit LCD |
|---|---|
| Power supply | 230 V AC ±15 %, 50 Hz |
| Size | Approx. 130 × 90 × 65 mm, wall mount |
| Operating conditions | 0–50 °C, up to 95 % RH |
Connectivity
| Network | Wi-Fi 2.4 GHz |
|---|---|
| Protocols | Modbus RTU (RS-485) optional |
| Cloud | MychoCloud dashboard, 30-second updates |
Specifications may change as the product is improved. Contact us for the latest datasheet.
What's included
- CO₂ Controller unit
- Wall-mounting screws and plugs
- Quick-start guide
- MychoCloud account access
Installation, warranty & support
- Help choosing fan size and placement
- Optional installation by our electricians
- 1-year warranty
- Phone and WhatsApp support
Where it is used
Common questions
Do I need an electrician to install it?
Not for most single-fan set-ups — mount the unit, plug the fan into its socket and set the levels. For larger fans or VFDs we recommend our installation service.
Where should it be mounted?
At breathing height (about 1.2–1.5 m) on an inside wall, away from doors, windows, AC outlets and direct sunlight.
Will an air purifier do the same job?
No. Purifiers remove dust and particles but not CO₂. Only fresh air lowers CO₂ — which is what this controller manages.
Can it control a fan in another room?
Yes, with an optional Wi-Fi relay unit placed next to the fan.
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View detailsGet the CO₂ Controller for your site
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