Brain and Timer Unit - Flood & Drain Pro Remote Nutrients by Brand/Additives/Rambridge If the probe face is

If the probe face is dirty or contaminated

this controller can also be used with either bottled CO2 gas or with a propane or natural gas burning CO2 generator

Accurate readings simplify crop management and provide improved growth

Good for growing a wide range of plants

Brain and Timer Unit - Flood & Drain Pro Remote Nutrients by Brand/Additives/Rambridge If the probe face isThe IWS Pro Flood and Drain Brain is the bigger brother of the regular IWS flood and drain system, the main advantage of the pro version over the regular is the fatser draining time. With faster draining and filling you gain better control of your feeding times and avoid leaving your roots submerged in nutrient solution for longer than necessary. Fitted with 2 Maxijet 1000 water pumps and 2 valves. Note: this unit needs the IWS Flood & Drain Minute