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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.

GroZone Controllers (7)

GroZone TV2 Multimode Fan Speed Control


GroZone TP3 High Temperature Shut-Off TempStat Temp -3


GroZone CY2 Short Period Cyclestat with Photocell


GroZone CY1 Cyclestat with Photocell


Grozone TP24H 24H Timer & High Temp Shut Off


GroZone TV12 - Day/Night Variable Fan Speed Controller w/idle Settings


GroZone TP12 - Adjustable Differential D/N Temp Stat