The NI-9234 and cDAQ-9174 USB Sound and Vibration Measurement Bundle includes the NI-9234 C Series Sound and Vibration Measurement Module and the cDAQ-9174 4-slot CompactDAQ chassis. The NI-9234 has built-in electronic piezoelectric (IEPE) sensors and non-IEPE sensors such as accelerometers, tachometers, and proximity sensors that you can use to measure signals. It also features input channels with built-in antialiasing filters that automatically adjust to your sample rate for simultaneous signal measurements. The bundle also includes a table mounting kit for the chassis.