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