VIVOSUN G4 4-inch Inline Duct Fan & Temperature Humidity Controller | E42A+ WiFi App Control, 195 CFM

Smart climate control for grow rooms

The VIVOSUN G4 4-inch inline duct fan pairs with the E42A+ temperature humidity controller to simplify how you manage a complex grow environment. Designed for growers who value steady conditions, this combo blends compact form with robust performance, ready to support seedlings through flowering.

Smart, energy-efficient ventilation

The fan uses a premium EC motor with PWM control, delivering up to 195 CFM while trimming energy use by about 30% compared with traditional AC fans. Its mixed-flow design moves air effectively and keeps noise low—levels can be as quiet as 28 dB in typical operation.

• Unified control: manage compatible devices from GrowHub E42A+ in a single dashboard.
• Real-time monitoring: track temperature and humidity with the included probe and see VPD insights in-app.

Fully automated growing, minus the guesswork

With the E42A+ controller, you can create stage-specific schedules for seedling, vegetative, and flowering phases. Preset light intensity, spectrum, schedules, fan speed, and airflow let you run a hands-free cycle while keeping the option to adjust anytime.

• Remote management: access your setup from anywhere via Wi-Fi.
• Smart triggers: devices react automatically to temperature or humidity thresholds you specify.

Durable, versatile and ready for more than tents

Crafted with a corrosion-resistant metal base and rugged housing, the G4 system is built for long life and safe operation in a variety of environments. Beyond grow tents, it suits greenhouses, hydroponic setups, attic cooling, and ducted HVAC tasks.

In the GrowHub ecosystem, you gain a scalable foundation to grow with confidence. The combination of hardware and software aims to deliver reliability and convenience, making advanced cultivation accessible to both beginners and experienced growers.