Cli-Mate’s Twin-Controller HUMI is an analog fan controller that automates intake and exhaust based on temperature and relative humidity. The TW.H series uses an external dual probe (air temperature and humidity) and provides independent settings for inlet and outlet minimum speeds plus an adjustable negative pressure. Two front toggle switches select Off, On (auto) or 100% for each fan. The controller operates continuously within 5–55°C and 20–100% rH, with a 1°C/±5% rH step differential. Protection class is IP44. It is available in 4+4 A and 12+12 A variants (total load 8 A or 24 A), powered from 220–240 V, 50 Hz. Enclosure dimensions are approximately 190 × 135 × 85 mm. Designed for reliable ventilation management in small to medium grow rooms.