AUTOMATIC VENT CONTROL — Powered by solar heat sensitivity, this greenhouse vent autovent opens and closes your window as temperatures shift, helping prevent overheating and keep growing conditions steady with no manual effort and no electricity required to run it.
YEAR-ROUND GROWING SUPPORT — This automatic window vent opener suits small greenhouse setups, cold frames, and hobby greenhouses; reacting to heat rising or falling, it helps keep your plants nearer their ideal temperature range as daylight conditions change.
ALUMINUM ALLOY BUILD — This sensitive auto opener features an aluminum alloy body that supports window weight up to 7kg/15lb and opens a maximum of 45cm/18 inch, providing a durable, non-electric vent solution for dependable daily greenhouse ventilation and consistent airflow.
CLAMP OR SCREW MOUNTING — With 1 x Automatic Window Opener Kit included, this opener attaches to your greenhouse frame either by clamping or by screwing, and the opening temperature can be adjusted from 20-25°C (68-77°F) to match your particular vent and window arrangement.
SOLAR HEAT SENSITIVE DESIGN — No wiring or power supply is required; this solar greenhouse heater alternative uses solar heat sensitive operation to open or close vents automatically as temperatures rise or fall, providing a simple, low-maintenance way to manage airflow.
