Jemp Vent

This easy to fit automatic window opener is a must have for any greenhouse and is capable of lifting window panels weighing up to 15lbs or 7kg
This quality device automatically opens greenhouse windows when the pre-set temperature is reached, ensuring that the temperature inside the greenhouse is perfect for your plants and seeds at all times
Complete with instructions this unit is not only easy to fit and operate but it is powered by solar energy which costs absolutely nothing to run