There are various types of hydroponics equipment and tools available for people that operate either commercial or home hydroponic gardens. Due to the fact that all hydroponic gardens involve the plants being exposed to lots of water, especially ones set up as flood and drain hydroponics gardens, it is important that the level of humidity in the room be closely monitored to be sure that the plants are not adversely affected.
A very high humidity level in a Secret Jardin hydroponic dark room can cause problems during photosynthesis because the plants will not be able to transpire the water that they have used. Many hydroponic gardeners use a Honeywell humidistat to regulate the humidity level in their garden rooms, but any type of quality digital humidistat can be used as long as it is set up properly and checked periodically. Humidistats and other hydroponic equipment can be purchased at various stores or online.