This Neulog Sound Sensor NUL-212 sensor has two modes of operation. In slow mode, it can be used to measure the Sound-pressure level in decibels. In fast mode it can be used to compare different sources of sound, their waveform can also be displayed.

The frequencies of tuning forks and wind-chimes can be determined and simple electronic signal generators calibrated using it. With two sound sensors, the velocity of propagation of sound in various media can be determined by timing a pulse traveling between them.

The sound sensor is located in a plastic box accessible to the atmosphere via a hole in its side.

Specifications:
Experiment Duration: 25 milliseconds to 31 days.
Range and operation modes:
Level: 40 to 110 dB
Signal: 0-4096
ADC resolution: 12 bit
Accuracy: ±2 dB and 1 signal
Resolution: 0.1 dB and 1 signal
Max Sample Rate (S/sec):
100 dB
10,000 signal

Please note: A connection between your sensors and hardware is required. You can choose from the USB Module, WiFi Module, RF Module, or Display Module. A Battery Module is also required for any connection other then USB Module, which is powered through the cable. View the  Neulog Connection Interface Group  for accessories.