Spider Farmer® 4″ Inline Fan w/GGS Programmable Controller

 4″ Inch Inline Fan with Speed Controller  This version features a design with an RJ12 port, a programmable controller, and a change to GGS controller. Adjustments can be made through the Spider Farmer app. Four operating modes can be selected Set start & stop times Set running & standby speeds CO2 device On/Off control Ventilation system for hydroponic grow tents, transfer heating/cooling, and exhaust odors. Package includes 1×4″ inline fan; 1xGGS controller (Do not include a power cord, directly connect to the inline fan); 1x temperature and humidity sensor, 1×2-in-1 adapter, 5x RJ12 cables, 1x RJ12 telephone line splitters