Profile: Internal Transducer Corp. is a manufacturer of acoustic transducers for ship and submarine sonar and oceanographic survey. Our product line includes spherical omnidirectional, deep water omnidirectional, omnidirectional and free flooded ring transducers. Our ITC-1001 spherical transducer offers a broad band omnidirectional transmitting and receiving response with efficiencies greater than 50% over the entire band. This transducer is fabricated of high precision Channelite-5400 lead zirconate titanate ceramic hemispheres. The model ITC-1001 is particularly well suited for high power noise sources and applications where a truly omnidirectional response is required. Our ITC-1001 spherical transducer offers a broad band omnidirectional transmitting and receiving response with efficiencies greater than 50% over the entire band. This transducer is fabricated of high precision Channelite-5400 lead zirconate titanate ceramic hemispheres. The model ITC-1001 is particularly well suited for high power noise sources and applications where a truly omnidirectional response is required.