Autosport Labs

https://www.sparkfun.com/products/8661

I am going off of this write up: http://bildr.org/2011/08/heartrate-arduino/

I'm just trying to find something I can hook up to the RCP that can monitor heart rate while in the car.

Here is one that could work, except that a finger monitor while driving would be terrible.

http://www.sunrom.com/media/files/p/258 ... asheet.pdf