Welcome to the store! Features: 12V Battery Undervoltage Controller: This is a 12V battery undervoltage controller. It primarily performs undervoltage protection for 12V batteries. Set an undervoltage value and a start-up value. When the battery voltage is lower than the undervoltage value, the module will automatically disconnect the load; when the battery is higher than the start-up value, the module will automatically connect the load. It has a memory retention function. It features a digital display that can show real-time voltage. It has an undervoltage setting button and a start-up setting button, making it easy to use. It has a delay function; the load will be disconnected after the voltage drops below the undervoltage value for 6 seconds to avoid false disconnections. Specifications: Product Name: 12V Battery Controller Load Current: 20A relay Size: 82x42mm Installation Size: 94mm Working Temperature: -25~85℃ Working Humidity: 5%~95%RH Note: Please allow 1-2 cm measurement deviation due to manual measurement. Due to the difference between monitors and lighting effects, the actual color of the item may differ slightly from the color shown in the pictures. Thank you. Package includes: 1 x Battery Controller Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!