Cuff-less Blood Pressure Meter Linked to Smartphone

The disassembled meter. LEDs and photo diodes are located in the left part. And the chip containing the core elements such as for the Phase Shift Method-based data processing is mounted on the circuit board in the right part.

The disassembled meter. LEDs and photo diodes are located in the left part. And the chip containing the core elements such as for the Phase Shift Method-based data processing is mounted on the circuit board in the right part.