Amazon.com: Vive Precision Aneroid Sphygmomanometer Manual Blood Pressure Cuff with Case - BP Kit Monitor for Adults, Nurses - One Hand, One Tube Upper Arm Cuff Machine - BPM Meter Device for
DIY Pulse/Heart Rate/BPM Meter using Easy Pulse Sensor & Arduino || Best Pulse Sensor - YouTube
liveBPM - Beat Detector - Apps on Google Play
MINI REVIEW: BeatGauge — BPM detector for iTunes • DJWORX