ALLISONTREE

Sonic wave timers use two sensors on opposite sides of the tree trunk to measure an impact induced sound wave's transit time across the trunk. Sound passes more quickly through solid, defect free wood. A larger than expected transit time per foot or per meter can indicate internal hidden defects... Allison Tree, LLC developed a cost-effective stress wave timer, Tree Check Sonic Wave Tree Decay Detector, available through Midwest Arborist Supplies and other arborist supply distributors... Bruce Allison is an author, educator, researcher and inventor. He is an recognized expert in advanced technology in tree decay detection and tree risk assessment

Also known as: Allison Tree, LLC

Primary location: Verona United States