Welcome to our shop! This counter module is designed to meet your needs. Here are some key features of the product: 1. The product has a memory function, so the data will not be lost when the power is off. 2. It is equipped with a 4-digit digital display, with a display range from 0 to 9999. 3. The module supports wide voltage operation, ranging from DC 4V to 40V. 4. It is made with high-quality electronic components and undergoes accurate processing, ensuring durability. 5. The module also has an accumulated +1 function, a clear function, and a power-off data memory function. You will receive 1 x Counter Module with the following specifications: - Item Type: Counter Module - Working Voltage: DC 4-40V - 4-digit Counter Counting Range: 0-9999 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service. Thank you for choosing our shop!