This wearable ECG sensor acts as the core wearable ECG sensor for high-precision cardiac signal gathering. It boasts low noise, high sensitivity and excellent stability to capture subtle bioelectric signals. Supporting modular lead configuration from 1 to 12 leads, it can be freely assembled to match different monitoring demands. With steady signal output and reliable performance, it continuously collects high-quality ECG waveforms. Adopted medical-grade contact material, it delivers comfortable wearing experience, fine waterproof property and great anti-movement interference capacity for long-duration wear. The ECG wearable sensor supplies original valid data to guarantee precise analysis on ST segment and arrhythmia, widely applied in ECG recording equipment, sleep monitoring and remote medical follow-up systems.