TecTake 402775 cold frame/greenhouse

This automatic window opener from tectake is a temperature-controlled, fully automatic device that always ensures optimal ventilation in your greenhouse. No more wondering if you’ve accidentally left a window open on a cold night, or left it closed on a hot day. Thanks to the automatic window lifter, you can decide what temperature range will open the window. The window opener doesn’t require electricity or batteries, and can be attached to any standard window size with ease. Create the best conditions for your plants to grow with the automatic window opener from tectake.