TreeRadar, Inc. is involved with tree health and safety. The company manufactures and sells world-wide a product, TRU (Tree Radar Unit), that uses ground-penetrating radar to non-invasively penetrates the tree trunk to detect and map internal wood compromised by fungal attack that can lead to catastrophic failure. TRU is also used to non-invasively detect and map the subsurface structural root structure to establish the roots layout and density that aids certified arborists in assessing the other component of tree risk of failure.