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Cli-Mate Twin Controller Humi 4+4 Amp

Cli-Mate Twin-Controller HUMI 4+4A — independent dual-channel ventilation with integrated humidity control
The Cli-Mate Twin-Controller HUMI TW.H-4 (4+4A) takes the precision of the Twin-Controller and adds a complete humidity regulation layer. A built-in dual sensor monitors temperature and relative humidity simultaneously, enabling the controller to manage fans, humidifier, or dehumidifier in two fully independent, automatic regulation loops. Find it in the climate control section at plantandflower.be.
Dual-parameter sensing: temperature and humidity in real time
The defining feature of the HUMI version is its integrated dual sensor measuring both temperature and relative humidity continuously. Fan speed is modulated proportionally based on temperature. Separately, the humidity loop activates a humidifier when the air is too dry, or a dehumidifier when it is too humid — two parallel, independent control circuits operating simultaneously without interference.
Proportional dual-channel ventilation with negative pressure
Ventilation control remains fully stepless and proportional, with two independent fan connections. For the intake fan, you set minimum and maximum speed. The extraction fan maximum is fixed at 100% — only the minimum is adjustable. This asymmetry maintains a controlled negative pressure inside the grow space at all times, preventing odour leaks and directing clean airflow through filtered inlets only.
Technical specifications
- Fan current: 4A + 4A (total 8A)
- Temperature range: 5-55°C (1°C switching differential)
- Supply voltage: 220/230V 50Hz
- Sensor: dual — temperature + relative humidity
- Control: proportional on T° + independent humidity regulation
- Mounting: integrated rear plate for wall installation | Protection: IP44
- Dimensions: 190 x 135 x 85 mm
For growers who also need light switching, the Cli-Mate Mini-Controller HUMI is the all-in-one alternative. For ventilation without humidity management, the Cli-Mate Twin-Controller 4+4A covers that. The Cli-Mate Twin-Controller HUMI ships fast to Belgian growers — professional dual-channel climate control at its finest.
What is the difference between the Twin-Controller HUMI and the standard Twin-Controller?
The HUMI version adds full humidity regulation to the standard Twin-Controller. It includes a dual sensor measuring temperature and relative humidity simultaneously, plus a dedicated output for a humidifier or dehumidifier. The standard Twin-Controller only manages temperature-driven fan speed and does not include humidity sensing or control.
Does the Twin-Controller HUMI regulate temperature and humidity simultaneously?
Yes. The two regulation loops operate in parallel and independently. Fan speed is continuously modulated based on measured temperature, while the humidity loop independently activates or deactivates the humidifier or dehumidifier based on real-time relative humidity readings. Neither loop interferes with the other.
Can I connect both a humidifier and dehumidifier to the Twin-Controller HUMI?
One humidity output is available with a mode selector for humidifier or dehumidifier. Only one device can be active at a time. To switch modes, reposition the selector and connect the corresponding appliance.
Is the Twin-Controller HUMI 4+4A suitable for large grow rooms?
The 4+4A version is suited to medium-sized grow rooms with fans drawing up to 4 amps per channel. For larger installations with higher airflow demands, a 12+12A version of the Twin-Controller is available. Always verify your fan's current draw before connecting to avoid overloading the controller.