my company is buy the 1) Fast, micro-second response time; 2) Resonant frequency is large than 100 kHz; 3) Measure small pressure changes at high static pressure levels; 4) Operating temperature range from -40 to +250 centigrade 5) Rugged solid state construction withstands shock and vibration to thousands of G&＃39;s; 6) IEPE amplified output for dirty or underwater environments can be transmitted through long, ordinary coaxial cable without loss of signal strength or an increase in noise