HydroMist 4000 – 4-Liter Ultrasonic Mist System with Extendable Hose

The HydroMist 4000 is a compact ultrasonic humidifier designed to generate a fine mist continuously and quietly. It is particularly well-suited for mushroom growing tents, terrariums, horticultural spaces, or other environments requiring high humidity.

Important: This device is designed to be installed outside the tent, terrarium, or humid environment. It is not intended to operate inside a high-humidity environment. This is precisely why it is equipped with a diffusion tube and an external sensor: the main unit remains outside, while misting and humidity measurement take place inside your growing space.

Key strengths

• Designed for outdoor use: the misting system should be kept outside the tent or terrarium, away from excessive moisture.
• Atomisation ultrason haute fréquence : produit des micro-gouttelettes < 5 µm pour humidifier efficacement sans détremper le substrat.
• 4-liter tank: extended runtime, with fewer refills needed each day.
• Adjustable flow rate up to 300 ml/h: easily adjust the mist output to suit your needs.
• Extendable tube (40–160 cm ): allows you to direct the mist directly inside the tent or terrarium.
• External sensor with a 1.5-meter cable: measures humidity inside the grow space while the unit remains outside.
• Fonctionnement silencieux (< 30 dB) : idéal pour un usage continu.
• Automatic shut-off in case of low water level: protection against dry running.

Technical Specifications

Directions for use

1. Always place the device outside the grow tent, terrarium, or any other very humid area.
2. Place only the tube and the sensor inside the area to be humidified.
3. It is best to use demineralized water to minimize limescale buildup and extend the life of the ultrasonic membrane.
4. Avoid kinks and reverse slopes in the pipe to minimize condensation buildup.
5. Clean the tank and membrane regularly to ensure long-term performance.

Thanks to its misting tube and external sensor, the HydroMist 4000 is particularly well-suited for grow tents and other humid environments where the unit must remain protected outdoors. It offers a practical, quiet, and effective solution for maintaining optimal humidity levels without exposing the motor and electronics to a water-saturated atmosphere.