Cli-mate Dual-Flow Controller Twin – negative pressure, 8 or 24 A

Cli-mate Twin Controller
Two independent outputs • Negative pressure setting • Sensor included • 4+4 A or 12+12 A

The Twin Controller drives extraction and intake separately, with independent settings. Two controls set it apart: the minimum speed of both flows, and the negative pressure — that is, the gap you want to keep between air going out and air coming in.

The negative pressure setting is odour control: by extracting slightly more than you blow in, air can only leave through the carbon filter. No leaks through zips or cable ports.

Why adjust intake and exhaust separately

A single controller driving two fans makes them run at the same pace. Yet extraction and intake almost never share the same needs: duct lengths differ, a carbon filter restricts extraction, motors have different flow rates. Independent settings let you genuinely balance the two flows.

Negative pressure, the unit’s most useful setting

Maintaining a slight negative pressure in the grow space means extracting a little more air than you bring in. The direct consequence: all outgoing air must pass through the carbon filter. Tent walls draw in slightly — the visual sign that the setting is right.

Two outputs, two combined ratings

Versions are stated as 4+4 A and 12+12 A: the first figure applies to each output, giving 8 A and 24 A in total. Check each motor’s draw separately, not just the total — it is the per-output limit that counts.

Technical specifications

• Device type : dual-output temperature controller
• Outputs : two, independently adjustable
• Adjustments : minimum speed (intake and exhaust) and negative pressure
• Regulation : automatic, temperature-driven
• Sensor : temperature sensor supplied
• Configuration : via buttons
• Mounting : rear mounting plate supplied
• Current ratings offered : 4+4 A (8 A total) or 12+12 A (24 A total)
• Weight : 1.9 to 2.2 kg depending on version

In the same range

• Cli-mate Dual-Flow Controller Twin Humi – humidity, 8 or 24 A
• Cli-mate Dual-Zone Controller Multi – 2 regulators, up to 32 A
• Cli-mate Climate Station Total – lighting and full climate, 7 A

GrowLED tip :
To set negative pressure without an instrument: raise extraction, then intake, until the tent walls draw in very slightly and evenly. If they deform markedly, you are extracting too much and straining the filter for nothing.

Joseph – Directeur de GrowLED