Features: Integrated DS1307 chip supports accurate time recording and is suitable for various sensitive application scenario. Equipped with card slot, it can store a large amount of data conveniently and is suitable for long data acquisition and recording tasks. Suitable microcontrollers such as 3.0, and easy to integrate into existing projects. Provide a standard I2C communication interfaces to simplifies the connection and programming process with main control system. It supports timing recording, periodic data acquisition and real-time display to meet various application requirements. The optimized circuit design can keep low power consumption and prolonging the service life of the equipment when it works for long time. Specifications: Component:PCB Size:Approx.9.4x2.55cm/3.7x1inch Package Includes: 1Pc Data Record Module 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.