Maybe you can add the BPM Meter? - Poweramp Feature Requests - Poweramp
Heart Rate Monitor using Pulse Sensor - BPM Meter
Behringer | Product | BC100
Finding Beats Per Minute | Vocalist
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Amazon.com: FTTH Handheld Fiber Optic Cable Tester BPM-100 Optical Power Meter -70~10dBm for Optical Fiber Communication Engineering : Industrial & Scientific
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