Profile: A-G Geophysical Products, Inc. manufactures underwater electrical connectors, hydrophones and cable products for the geophysical industry. Some of our product names are marine connectors such as AGM 1000 series & AGMU 1000 series, positive connectors such as AGP 2000 series & AGPU 2000 series, and AGH 500 series & 600 series transducers. The AGH 7000 series hydrophone is a high pressure hydrophone intended for marine applications. It is neither calibrated nor characterized. It is primarily used with seismic source firing and control systems. The AGH gun high pressure transducer has a diameter of 1-3/4", and a resolution of 1Hz.