Hanuman Yantra is associated with God Hanuman. The important benefits include good health and prosperity. Yantra is a visible form of a personal deity and it is also a visual form of mantras. The importance of Hanuman Yantra springs from the fact that constant meditation and prayers before Hanuman Yantra has helped many people in overcoming health related problems.
The Yantra also helps in achieving good physical strength. Worship of it also helps in removing various sexual disorders.
Worship of Hanuman Yantra also helps in alleviating various types of fear like fear of darkness and fear of ghosts.