CO2 Controller for Mushroom Farms

The perfect monitor

This monitor controller is what I have been looking for for 25 years. It keeps the co2 levels at the correct levels. When they go to high the fan kicks on and runs until the co2 reaches 800 parts per million, which is the default setting. I just purchase 3 more one for each of my grow rooms. I feel they are very reasonable priced as well.

Wonderfull

Works wonderfully

So far so good

The co2 meter seems to be accurate. It always goes back to 420 ppm when I'm away from the house. It'll be about 2 to 4 weeks before its really put to the test.