AgrowTek GC-XO Slave Expansion Controller Nutrient Accessories depending on the crop size

depending on the crop size and species

and a digital temperature memory system that remembers your settings in case of a power interruption

" these liners stand at the forefront of storage and preservation solutions

Mount + 5 ft Cord Included: Fast to install on trusses

AgrowTek GC-XO Slave Expansion Controller Nutrient Accessories depending on the crop sizeExpand your GrowControlTM System with a GC XO Slave Controller The GrowControlTM GC XO slave adds more outputs to existing GC Pro or GC ProXL series controllers. GC XO controllers have the same construction as GC Pro controllers, but are equipped with only outputs for turning relays on an off. Slave controllers do not have any of their own control functions, they simply turn on and off as required by the "master" controller that they are listening to.