Garrett GTI 2500 Treasure Hound Depth Test
This is a depth test of the Garrett Treasure Hound which supposedly can detect an object to 15 to 20 feet. In this test 3 mail boxes were buried at 1 meter, 1.5 meters and 2 meters in mild soil. The test will be run again in 6 months at which point the detection depth should be greater due to the 'halo' effect of the objects. See more at http://www.thaimetaldetectors.com/ .