JULYKAI Agriculture Solutions Liberty,Automatic Opening Closing Louver Blind Window Opener Opening Tool for Home Office Louver Opener Automatic Window Opener for Greenhouse

• 【Suitable for Most Blinds】The opening force is about 25kg/55lb, and the closing force is about 15kg/33lb. The automatic greenhouse ventilation kit is suitable for most blinds.
• 【Automatic Opening/Closing】The window opener automatically opens and closes as the temperature changes, it does not consume any power, energy-saving and environmentally friendly.
• 【Working Condition】It starts to open when the temperature reaches 17-25°C (63-78°F), and reaches the maximum opening when the temperature rises to 30-32°C (86-90°F).
• 【Excellent Quality】The automatic greenhouse vent is made of high-quality aluminum, which is not easy to rust and is durable.
• 【Easy To Install】Easy installation through the provided clips or screws, no battery or electricity is required, simple and convenient.

Specification: Condition: 100% Brand New Item Type: Window Opener Material: Aluminium Opening Force: 25kg / 55lb Operation Area: Start at 17-25℃ (63-78℉) Maximum Open: Full at 30-32℃ (86-90℉) Closing Force: 15kg / 33lb via heavy duty spring Support Bar Length: Approx. 34cm / 13.4in Spring Fixing Tool Size: Approx. 14 x 5 cm / 5.5 x 2 in Weight: Approx. 343g / 12.1oz Package List: 1 x Support Bar 1 x Spring Fixing Tool 4 x Slotted Screw 2 x Small Cross Nail 4 x Screws 2 x Small Screw 4 x Large Round Fixed Ring 2 x Small Round Fixed Ring 2 x Round Iron Ring 1 x Instruction Manual