Bluelab External Lockout and Alarm Box Grower's Edge If your pH isn't in

If your pH isn't in the right range ”“ and that's 5

com ships a free one foot height extension with each Gorilla Grow Tent sold

and heavy metals on well water

6 GPH Dripper Assembly for Blue Spray Stakes

Expand your GrowControlTM System with a GC-XO Slave Controller

Bluelab External Lockout and Alarm Box Grower's Edge If your pH isn't inUse the Bluelab External Lockout & Alarm Box to connect the Bluelab Pro Controller to external switches, for example a float switch or a greenhouse alarm system. When these switches are activated, the Bluelab Pro Controller is placed in lock out mode, so no further dosing will occur until reset. Comes with built in alarm which can be disabled if required. It can be connected to an external alarm (horn or flashing light).