Thoughts On Growing With CO2 Supplementation?

[sweettooth]

unsure which co2 monitor to trust. I have a cheap chinese one that stays around 420 ppm in my house. It goes up to 1200 when im cooking. I took it upstairs and it jumped to 1000 pm at my canopy yet my ram controller said 280ppm.

 

Im siding with the more expensive ram controller but after seeing lots of readings 800 and higher, how accurate are some of these monitors?

 

with ppm at 800 or above, you dont need supplementation

[Devon Cream]

If your gonna go c02 the shiva units are the ones we used spot on but that was in sealed rooms imho your pissing in the wind in tents and those co2 bags are crap tried em years ago and the amount of ppm is raised it by where crap