The Pearl™ can also be used to regulate the amount of CO 2 inside the greenhouse by controlling CO 2 pumps or injectors.

This mode is active between the Start and End times. 

Co2 programming has 2 Setpoints,

Setpoint 1:  Drives the C02 levels to a specific threshold regardless if your vents are wide open and the light bright and above a certain value

Setpoint 2:  is a conditional statement that allows you to force the level to a certain level if the outside light is above a set threshold and the temperature stage is greater than or equal to

a preset level.