When using the ACS712ELCTR-20A-T current sensor in environments filled with electrical noise, its performance can suffer. The sensor, a widely used hall effect-based current sensing solution, is designed to measure both AC and DC currents. However, in noisy electrical environments, external electromagnetic interference (EMI) and electrical noise can significantly impact its accuracy and reliability. Fortunately, there are several troubleshooting techniques that can help ensure the sensor operates optimally despite these challenging conditions.