Fouroutlet humidifier module PCB designed for easy integration into home, plant cultivation, and cold storage environments to maintain stable, comfortable, and preservative humidity. Four outlets enable rapid, distributed humidification for quick response and even moisture spread in your space or enclosure. Builtin water level detection and overheat protection provide safe operation and reduce risk of dry burning, suitable for continuous use in various devices. Compact form factor with simple wiring and mounting, easy to integrate into existing enclosures or custom projects; supports external sensors and adjustable control. Use scenarios: Home comfort and storage: maintain consistent humidity in living areas or preserve perishables in cabinets. Plant cultivation: support greenhouse or indoor garden environments for healthier growth. Prototyping and lab work: use on a test bench or embedded project requiring controlled humidity.