do you use the software its free in having issues .....?
Native¥organicfarmer Reviewed by Native¥organicfarmer on . Sentinel CHHC-1 question (CO2) I have been using CO2 for a little while now. My results have been about a 20-30% increase with just using a regulator with a timer. I also discovered a leak in which more co2 was being released then I realized (still good results with no issues). I had the regulator replaced and now it seems as though the plants aren't the same they normally would be at the same timeline. So I came across a Sentinel CHHC-1 for a really good price! I got all the instructions online and set it up. But I am Rating: 5