Features: 100% brand new and high quality Microcontroller weighing AD module-TM7711 and HX710A chip are software and hardware compatible; TM7711 is more cost-effective. This module uses a 24-bit high-precision A/D converter chip TM7711, which is designed for high-precision electronic scales with a single analog channel input. The input circuit can be configured to provide bridge voltage (such as pressure, weighing) sensor mode. It is an ideal high-precision, low-cost sampling front-end module. Widely used for electronic scales and balance material scales, jewelry scales and control system. Package Includes: 1x Electronic Weighing Sensor Specifications: Material:PCB Size:Approx.33x16mm/1.3x0.63in Net Weight:17g note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.