Item Type: AD8232 Module ECG Sensor Kit Material: PCB Power Supply Voltage: DC3.3 V Operating Temperature Range: -40 ~+85 Rated Temperature Range for Guaranteed Performance: 0 ~70 1The module is made of PCB material, which is corrosion resistant and has a long service life. 2Lightweight and mall size, easy to carry and store, convenient to use and with good performance. 3Wide range of applications, including fitness and exercise heart rate monitoring, portable ECG, remote health monitoring, gaming peripherals, etc. 4The power supply voltage is DC3.3 V, and the operating temperature range is -40 ~+85 . 5Great workmanship, with strict quality control and quality assurance, high safety factor, can be used with peace of mind. 1 x ECG Sensor Module 3 x Patch 1 x Electrode Wire