The Models 3023M1 and 3023M1-HT Piezoelectric Accelerometers exhibit a transfer sensitivity greater than 10 picoCoulombs/g. The high sensitivity, wide frequency response, and wide operating temperature range provides a device well suited to a broad spectrum of low to medium level vibration measurement applications. The internal construction of the piezoelectric seismic system ensures that the units have no discernible spurious response to mounting torque, body strains, cable vibration, cable whip, pressure variations and most heat transients.