Pro-Leaf CO2 Controller for Grow Room Enrichment

Precise CO2 Enrichment, Set Once and Left to Run

The Pro-Leaf CO2 Controller gives adjustable CO2 output from 400ppm to 2000ppm with a self-calibrating CO2 sensor and digital display, running on either bottled CO2 or propane gas. Dosing is restricted to lights-on, the only time plants use CO2, so nothing is wasted overnight. Setup is close to plug and play, and it ships with a 1 year manufacturer's warranty.

Key Benefits

• 400ppm to 2000ppm adjustable output, from light supplementation to full enrichment
• Day and night mode restricts dosing to lights-on, so no CO2 is wasted
• Self-calibrating sensor, though annual manual calibration is worth doing
• PPM Up / Fuzzy Logic PPM Down doses in short bursts, stopping a bottle regulator sticking open when cold
• CO2 disable mode connects an extractor fan to pull levels down at night in closed loop rooms
• Bottled CO2 or propane compatible, with a digital display for checking settings at a glance

Why Bother Enriching CO2 at All?

Plants use CO2 for photosynthesis, so restricting it restricts sugar production and caps growth however good your light and feed are. Ambient air sits at roughly 400 to 450ppm, while plants handle 1000 to 1200ppm. Bringing a sealed room to 1200ppm can increase yield by up to 20%, and in summer it helps plants cope with heat stress.

How to Use

• Set up: plug in, press the left button once, then turn to set your target CO2 level.
• Bottled CO2 route: also needs a CO2 bottle, a regulator with solenoid valve, optional dispersion tubing and a power lead. Pin adaptors may be required.
• LPG route: needs a propane canister, an LPG generator and a UK low pressure propane regulator, typically 1/2 bar with a 4kW generator.
• Night-time: use CO2 disable mode with an extractor fan to bring levels down in closed loop rooms.
• Maintenance: self-calibrating, but run a manual calibration once a year.