-This automatic greenhouse window opener uses temperature-sensitive expansion to open and close vents without electricity.
-Ensure your plants always have the perfect environment with this non-electric, automatic window opener.
-Featuring a double-spring design for added strength and stability, it helps maintain optimal airflow and temperature inside your greenhouse-completely hands-free.
Features
-Automatic temperature-controlled opening and closing
- The internal cylinder expands or contracts based on the ambient temperature.
-Double spring system for stronger lifting force
-Solar Energy Powered: No batteries or electricity required.
-Heavy-duty aluminum alloy arms.
-Adjustable opening temperature.
-Smooth piston operation.
-Corrosion-resistant hardware.
-Easy installation.
-Manual override supported.
-Type: Automatic greenhouse vent opener
-Mechanism: Thermal piston + dual springs
-Material: Aluminum alloy + steel springs
-Opening Temperature: Approx. 15 C-30 C (adjustable)
-Max Window Opening: Approx. 45 cm / 18 in
-Opener is suitable for vents weighing up to 7-15kg.
-Finish: Silver with black piston rod
-Application: Greenhouse roof or side windows.
Notes:
-Not suitable for temperatures above 50 C / 122 F.
-Remove or store the cylinder indoors during winter in freezing climates.
-Lubricate moving parts periodically for best performance.
-Ensure the window can open freely without obstruction.
-You should not overlook the fact that thetemperature might vary in the same greenhouse from window.
-Do not apply excessive manual force to the window while the opener is installed.
What's in the box
1 x Automatic Double Spring Window Opener
2 x Mounting Brackets
8 x Mounting Screws
1 x Hair Pin
1 x Stop Pin
