Features • High Accuracy Performance - Built-in AD584 module ensures exceptional accuracy and stability, making it a reliable choice for critical electronic applications • Versatile Voltage Outputs - Easily switch between 2.5V, 5V, 7.5V, and 10V from the same port, providing flexible voltage reference options for various projects • User-Friendly Design - Features a single-key operation and LED indicator for easy channel switching, enhancing convenience and efficiency during use • Stable and Reliable - Designed for consistent performance, this module is easy to install, ensuring a hassle-free setup for your electronic components • Durable Construction - Crafted from high-quality PCB and acrylic materials, this voltage reference board promises long-lasting durability for all your electronic needs Features: 1、Built？in AD584 module, with the highest accuracy and stability, reliable to use. 2、The same port can output a reference voltage of 2.5V / 5V / 7.5V / 10V. 3、MCU switch 4？channel reference voltage output, with LED indicator, single？key . 4、Voltage reference module, with stable performance, easy to install and use. 5、Using high？quality PCB board + acrylic material, and long？lasting. Specification: Item Type: Voltage Reference Module Material: PCB Board+Acrylic Model: AD584 Color: Yellow Measuring Range: 2.5V, 5V, 7.5V, 10V Power Supply: Polymer 503035 500mAh x 1 (Built-In Battery) How to Use: Get the product, turn on the power button, the indicator shows which range, the module test is in which range. Pr the middle button of the module again to switch the range. The user can take the test line and insert it into the positive and negative holes for measurement. Package List: 1 x Voltage Reference Module Package List 1 x Voltage Reference Module