Autopilot REVOLVE F20 Repeat Cycle and Light Combo Timer Jungle Control CO2 is released as both

CO2 is released as both calcium and usable carbon dioxide

Hard plastic storage case and instructions included

and overall durability

clean and store your GroStar pH probe

The tent also includes nets allowing your plant to "keep their head high"

Autopilot REVOLVE F20 Repeat Cycle and Light Combo Timer Jungle Control CO2 is released as bothThe Autopilot REVOLVE F20 Repeat Cycle and Light Combo Timer controls lighting schedules and timed cycling functions in your grow area with perfect digital accuracy. It has simultaneous dual timer functions, a 24 hour time clock for lighting, and a precision cycle timer for pumps, CO2 injection, exhaust fans, intake fans, etc. that allow you to dial in programming down to the second. REVOLVE F20 has four outlets. Two outlets control light(s) light