We design and manufacture piezoelectric materials, transducers, turnkey integrated systems and optical solution technologies that support mission critical applications for military and essential commercial market platforms. Based in Santa Barbara, Calif. and with a second manufacturing site in Bolingbrook, Ill., Channel Technologies Group (CTG) first began manufacturing piezoelectric ceramics in 1959. Since that time, CTG has grown and developed unparalleled in-house expertise, allowing CTG to expand its product offerings to include piezoelectric ceramics, piezoelectric single crystals, transducers, turnkey sonar systems and electro-optical calibration and testing equipment. Our products are used in a multitude of applications, and by a wide variety of end-users including medical device manufacturers, marine explorers and energy companies. We also service customers in the defense industry, including several departments of the U.S. Navy and many leading defense contractors. Piezoceramic Products: Bars/Squares/Plates Discs (with or without holes) Rings Cylinders (hollow, solid and/or striped) Staves Spheres/Hemispheres/Spherical Segments Shear Bars Sonoluminescence Kits Single Crystal products: Plates Wedges Discs Cylinders Rings Tubes Cubes Transducer products: Omnidirectional Transducers Directional Transducers Depth Sounders Sidescan Transducers Free Flood Ring Transducers Hydrophones Preamplified Hydrophones Air Transducers Integrated Systems products: Forward Looking Sonar Obstacle Detection and Tracking High-Resolution Side-Scan Precision Homing and Docking Acoustic Communication Links Flexible Arrays LBL, SBL and SSBL Navigation Systems Transponders Deck and Rackmount Transceivers Range Systems Custom Acoustic Solutions