Autopilot CO2 Monitor & Controller w/15' Remote Sensor DH35813 Remove lid and add 1

Remove lid and add 1 litre (4 cups) of lukewarm water

correcting the problem of nutrient salt toxicity and lockout

The Original ExHale CO2 Bag produces CO2 24 hours a day with no need to refill bottles or use expensive CO2 production units

and temperature in hydroponic nutrient solutions

Autopilot CO2 Monitor & Controller w/15' Remote Sensor DH35813 Remove lid and add 1Autopilot APC8200 CO2 Monitor & Controller with Memory offers a simple and affordable way to control, monitor and record CO2 levels over an adjustable period of time. Trace your room's CO2 levels over minutes, hours, or up to 7 days with this easy to use controller. The APC8200 also boasts a fully customizable CO2 setpoint and deadband. Adjust and review your CO2 levels when you want to and how you want to. The APC8200's memory feature gives growers a