ACS724-LLCTR-40AB is the sensor chip in use today. Onboard power indicator, pin 5V power supply. The analog output of the module is 50mV/A, and it can measure both positive and negative 40 amp current. The output voltage is VCC/2 when no detection current is passed. PCB board dimensions: 32 x 15 mm. Qualities: Dual-Orientation Recognition: Its ability to measure both positive and negative currents increases its usefulness in a range of electrical systems. Compact Design: The PCB board size of 32 x 15 mm guarantees a space-efficient solution for a range of applications. Adaptable Power Source: With its onboard indicator and 5V power supply support, it can be used in a variety of power situations. High Accuracy Measuring: With a 50mV/A analog output, the ACS724-LLCTR-40AB chips provide precise 40A current detection. Simple Integration: This module is made for the Arduino and STM platforms and is a