FS - Reflection Seismic detector

FS-Reflexion is a geophysical measuring instrument to locate subterranean voids like caves, bunkers, tunnels or basement vaults. FS-Reflexion works with a seismic vibration system. A transmitter generates vibrations going into the ground. Depending on the type of soil they will be transmitted or damped. If a void exists it will start to resonate in its own frequency and can be detected by a seismic vibration transducer. FS-Reflexion can be used all around the world, no matter if there is stony ground, loam or clay soil, in the mountains or in flat country.