Cli-Mate Twin-Controller is an analog environment controller designed to manage intake and exhaust fans based on temperature. The unit provides independent minimum speed settings for IN and OUT fans and a separate dial to maintain negative pressure, helping reduce odor leakage from the grow space. It includes a cabled air-temperature sensor and automatic temperature control via front-panel knobs. The controller is available in two versions: 8A total (4A + 4A) and 24A total (12A + 12A). Key specs include a 5–55°C set range, 220/230V–50Hz power, 1°C step differential, IP44 splash protection, and a housing measuring 190 × 135 × 85 mm. ON/OFF/100% switches allow bypassing temperature control when needed, and a rear mounting plate simplifies wall installation.