B.D.A. Geosignal Instruments, Our mission: Not only selling a broad range of products, but also offering consultancy over monitoring needs and developing special custom made sensors, equipment and software in order to ach......B.D.A. Geosignal Instruments, Our mission: Not only selling a broad range of products, but also offering consultancy over monitoring needs and developing special custom made sensors, equipment and software in order to achieve the best solutions in matter of monitoring and control.