Grozone Control designs and manufactures quality climate controllers for your indoor garden and greenhouse. From precise Co2, RH and Temperature controllers, to cycle timers, tempstats or CO2 Generators, we have all you need to help you control the climate inside your indoor garden or greenhouse. 

Expect high quality products with the best warranty in the industry. 
Lowest return rate of the business. Period. 

Be R3 Compliant : Reliable Products, Reliable Service, Reliable People.

Warranty

• Grozone controllers are covered by a 3-year warranty (*). We will replace any DAMAGED PRODUCT WITH A BRAND NEW PRODUCT.
• Covered or not covered? We do not authorize the replacement of fully working products nor altered (tampered) products. The Troubleshooting steps will help you identify a damaged product. Do not hesitate to contact us or contact your retailer to make sure the controller is not fully working or damaged before returning it to the store.
• My product is not fully working or damaged, I want a replacement unit: in order to get a replacement product, you MUST return all modules and applicable accessories to the retailer. To avoid being charged for the accessories, be sure to  include all pieces. Thanks for your cooperation.
• Grozone Control exercises the right to make final decisions in these matters