Features: INA231 I2C bidirectional current power monitor provide current detection, which is suitable for electronic engineering projects that need precise current management. Convenient data communication is realized through I2C, which helps engineers to easily integrate into complex systems. It is suitable for all kinds of scenes from small portable devices to large-scale industrial applications to meet diverse needs. Built-in power calculation function can monitor and analyze power consumption in real time. Help users optimize energy use, especially for home and Internet of Things devices that need energy-saving management. Ensuring the stability and durability of long-term use. Suitable for devices that need long operational, such as servers and networking devices, and reduce maintenance frequency. Specifications: Size:Approx. 18.1x19.3mm/0.71x0.76inch Package Includes: 2 Set Monitoring Sensory note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.