G.A.S Pro-Leaf CO2 Controller

G.A.S Pro-Leaf CO2 Controller

The brain that runs the Pro-Leaf CO2 burner (or any compatible CO2 supplementation system). Adjustable from 400 to 2,000 ppm, the Pro-Leaf Controller gives you precise CO2 management — essential for high-light grows where plants can actually use the extra CO2 to drive photosynthesis beyond normal atmospheric limits.

Why growers choose the Pro-Leaf Controller:

• Adjustable 400-2,000 ppm range — covers the full useful supplementation range for indoor growing
• Precise closed-loop control — reads current CO2, triggers your burner or regulator, stops when target is hit
• Optimum growth target of 1,200 ppm — the sweet spot for most crops at high light intensity
• Shortens grow cycles — growers using CO2 properly see measurable reductions in time-to-harvest at the same yield
• Pairs with the Pro-Leaf LPG Burner — matched system, designed together, guaranteed compatibility

Who it's not for:

CO2 supplementation only pays off with high-intensity lighting — typically 600W+ per square metre. At normal light levels, plants cap out around 400ppm and extra CO2 is wasted. For small tents or hobby grows, a CO2 bag is a simpler, cheaper start. You'll need a CO2 source (burner or bottled regulator) to pair with the controller.

See it running in our Stone shop. Drop by Unit 24, Emerald Way, Stone Business Park (ST15 0SR) to see this fixture set up, or call us on 01785 556355 (Mon–Fri, 10am–5pm) to talk through whether it's the right choice for your tent size and grow style. In stock now with 24hr UK dispatch, or choose click & collect at checkout.