Dedicated Grow Tent Dehumidification, Down to 25% RH Too much humidity invites mould, botrytis and a host of problems you don't want anywhere near your grow. Hydrone is a dedicated grow tent dehumidifier, not a repurposed household unit, built to pull moisture down to precise levels and hold it there. A PWM-controlled motor gives 10 distinct drying levels with instant on-off response, capable of reaching as low as 25% RH where needed. The dual-port system supports open or closed-loop ducting, and an internal reservoir with an optional gravity drain hose keeps maintenance to a minimum. Connect it to a UIS controller and you'll get WiFi app access, alerts and automation alongside the rest of your setup. 10-level drying control gives a precise, instant on-off response Capable of reaching as low as 25% RH A dual-port system supports open or closed-loop ducting Drainage-ready, with an internal reservoir and an optional gravity drain hose UIS connectivity brings WiFi app access, alerts and automation Which size do you need? The Hydrone 5 comfortably covers tents up to 1.5m², while the Hydrone 7 is built for larger tents or particularly humid grow rooms up to 3m². Browse the full Climate range for fans, humidifiers and heaters to match. A quick maintenance note: for short spells the internal reservoir is fine, just empty it when full, but for anything longer than a few days, connect the gravity drain hose and run it straight to a drain so you're not caught out by a full tank shutting the unit off. It's also worth wiping down the air intake every few weeks; a dusty intake is the main reason drying performance drops off over time.