The Day/Night CO2 Monitor & Controller lets you set a target CO2 level. Using advanced hysteresis logic, when CO2 levels get too low, power is supplied to a CO2 generator or regulator via the built-in 100-240 VAC 5A piggyback power cord. When the target level is reached, the power is turned off.

In addition, the CO2 Monitor & Controller has a built-in photo sensor that overrides the CO2 control and shuts off the CO2 when it senses darkness. Photo sensor control saves dollars and energy by insuring you’ll only be supplying CO2 during the light cycle when it is needed.

Best of all, the CO2 Monitor & Controller is easy to install and use. Simply mount the unit inside your grow room, (all cables and hardware included), plug it into a standard wall jack, plug in your CO2 generator or regulator and it is ready to maximize your plant growing yields.