Heart rate ear clip kit contains a ear clip and a receiver module; The heart rate measure kit can be used to monitor heart rate of patient and athlete; The result can be displayed on a screen via the serial port and can be saved for analysis; The entire system has a high sensitivity, low power consumption and is very portable; Features low power consumption; Wide power supply range: DC 3~5V; Convenient to use; High sensitivity; Fully RoHS compliant.