Models 1113 piezoelectric accelerometers provides a unique combination of wide frequency response and high sensitivity. Model 1113A has a signal return internally insulated from the mounting surface. Frequency response +/-10% from 1 Hz to 8000 Hz combined with sensitivity of 60 pC per g (nominal) make the Model 1113 ideal for a wide range of vibration measurement applications. The high sensitivity provides a high signal o noise ratio over the -65o to +250oF temperature range.