Check the listing for details. Grozone CO2D 0-5000 PPM Dual Zone CO2 Controller Hydroponics Grow Room. Condition: New. Listed at 469.95 USD. Grozone CO2D 0-5000 PPM Dual Zone CO2 Controller Hydroponics Grow Room MAIN FEATURESControls the CO2 levels in two zones (or two rooms) simultaneouslyReview performance by reading through the integrated 24-hour data logger (minimum, maximum and average values for each hour of operation)Special operating mode to operate two zones with only one CO2 generatorZone remote sensors include 25-ft cablesAffordable alternative when operating multiple zonesDETAILS AND SPECIFICATIONSIncluded Modules and Accessories:One main controller boxTwo remote modules integrating CO2 sensorTwo output boxes to connect 120Vac equipmentOne wall mount power supplyTwo computer cables to connect remote moduleTwo telephone cables to connect Output BoxesOne user guideOne screw kit HandlingWe will ship all orders within 1-2 business days of payment.Shipping SHIPPING IS FAST AND FREE. We ship to the lower 48 states only. DISCREET SHIPPING. All our items are shipped in either USPS or UPS packages with no brands or pictures on the box and will not say Hydro4Less on it. Our larger items are always black wrapped.Return PolicyWe do not accept returns. Please be sure this is the item you want before making your purchase.If the item has arrived damaged, we will always send you a full refund or replacement.