Catalog > Consumer Electronics > Kits > Various Kits Blood/Oxygen/Heartbeat Sensor Blood Oxygen Heartbeat Sensor HKD MAX30102 OXYGEN/HEART/BLOOD MAX30102 Blood/Oxygen/Heartbeat Sensor 44.61 ZAR inc for 1 Each 0 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Weight : 2.5g Size : 16x21mm Header black or yellow random delivery. Pin spacing : 2.54mm Distance between two rows of pins : 10mm VIN : Main power supply input terminal,1.8V-5V SCL : Clock connected to I2C bus SDA : Data connected to I2C bus INT : Interrupt pin of MAX30102 chip RD : The RED LED grounding terminal of the MAX30102 chip is generally not connected IRD : The IR LED grounding terminal of the MAX30102 chip is generally not connected GND : Ground wire