The Cli-Mate Hybrid Controller is an analog, plug-and-play fan controller designed to keep indoor temperature stable by stepping AC fans through five speeds. It provides two outlets for fans and a 5 m remote temperature probe. Users set the target temperature along with minimum and maximum fan speeds to maintain airflow while limiting noise. A copper transformer coil ensures hum‑free operation when reducing speed. The controller operates on 220–240 V, 50 Hz, with an 11–45 °C working range and 1 °C hysteresis. It carries an IP44 protection rating and measures 380 × 260 × 120 mm. Available variants handle 7 A or 12 A loads and include an external fuse cover for easy replacement.