Simple Heart and Respiration Rate Measurement

See sine.ni.com/nip...
The NI USB Biophysical Measurements System is a complete data acquisition solution for measuring, simulating, and analyzing signals of interest in biomedical applications. You can choose from several third-party sensors to convert biophysical signals into the analog voltages measurable by NI data acquisition devices.

[@eujg84]

Does it work in small animals like mouse or rat?

[@theaterpot]

Where can I buy the sensor? Can you send me the link, please?