Automatic Greenhouse Vent Opener - Temperature Sensitive, Paint Sprayed Iron, Double Spring Window Opener for Ventilation

Description:<br> Ingenious temperature-sensitive automatic vent opener can automatically open and close window frame, really works well in maintaining greenhouse within preferred temperature . vent opener starts opening between 15-25℃ (60-77℉), depending on how you have adjusted cylinder.<br> &nbsp;<br> Features:<br> [Automatic Vent Opener]Greenhouse windows opener can open and shut your greenhouse window automatically to maintain best-growing temperature and your greenhouse from overheating.<br> [Wide Applicability] vent opener can be closed manually and is easy to install, fit for most aluminum frame greenhouses.<br> [Adjustable Temperature ]Temperature is adjustable from 15-25℃ (60-77℉) by turning cylinder, maximum opening at about 30℃/86℉ (depending on adjustment and load).<br> [High-quality Construction]Durable and rust-proof Iron windows opener with paint spraying for last long time use.<br> [15lb Load Bearing]Use Standard Vent Opener to lift to 7kg / 15 lbs.<br> <br> Specifications:<br> Material: Aluminum, Stainless Steel<br> Color: Black<br> Star open at:：15-25℃ (60-77℉)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;<br> Fully open at: 30℃/86℉&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;<br> Max open distance: 45cm/17.71inch<br> Load bearing: 7KG / 15lb<br> Cylinder Length: 33.8cm / 13.3inch<br> Package Size: 37.5*9.8*4.5cm / 14.76*3.85*1.77inch<br> Package Weight: 439g / 0.96lb<br> <br> Package List:<br> 1 * Automatic Vent Opener<br> 1 * Cylinder<br> 1 * Package of Accessory<br> 1 * Manual (English)<br> <br> Note:<br> Do not heat to more than 50℃(122℉).<br> Do not dismantle cylinder.<br> Do not apply excessive loads by locking or covering window.

• [Automatic Vent Opener]Greenhouse windows opener can open and shut your greenhouse window automatically to maintain best-growing temperature and your greenhouse from overheating.
• [Wide Applicability] vent opener can be closed manually and is easy to install, fit for most aluminum frame greenhouses.
• [Adjustable Temperature ]Temperature is adjustable from 15-25℃ (60-77℉) by turning cylinder, maximum opening at about 30℃/86℉ (depending on adjustment and load).
• [High-quality Construction]Durable and rust-proof Iron windows opener with paint spraying for last long time use.
• [15lb Load Bearing]Use Standard Vent Opener to lift to 7kg / 15 lbs.