CO2 Auxiliary Smart Controller
An auxiliary output can be configured to defeat ventilation during a CO2 enrichment or venting process An additional delay may be set to maintain auxiliary output defeating for an additional 5, 10, 15, or 20 minutes Each output can be set to operate during the day only, the night only, or day and night Warranty: 1 year If you're confused or have questions about CO2, check out our CO2 buyers guide. Want to know know long your tank will last in your growing space? Using a co2 calculator will help you use your CO2 efficiently.