FanSpeed EC

FanSpeed EC by GrowControl is a compact, manual controller for regulating the speed of EC motor fans used in indoor cultivation. The device provides stepless adjustment from 0 to 100% and is offered in two connector variants to match common fan interfaces: an RJ45 version and a 3.5 mm jack version; fans with a 6.3 mm jack can be connected via a 3.5-to-6.3 mm adapter. Designed for straightforward, plug-and-play use, it lets growers dial in extraction or intake airflow without extra sensors or automation. FanSpeed EC is intended specifically for EC fans and comes as a dedicated speed knob rather than a climate computer, making it a simple option for setting and maintaining constant ventilation rates in a tent or room.