Description
F5 940nm LEDs Infrared Emitter and IR Receiver Diode for Arduino 5MM Infrared Emission+Receiver Tube (Set of 40pcs) 5mm Ir Led Diode Kit (40pcs) healthDE_Feb2024 Precisely Design: It will make sold2025 Size:3pcs (10+19+25mm) B09KN6RF28 CS Unitec 38528 Pipe Precisely Design: It will make the heart rate direction function work perfectly Instructions for use one serving 2