Features: This digital display battery disconnect switches offer intelligent power management by monitoring battery voltages in real time to prevent over discharge and over charges, enhancing battery efficiency and life for automotive, marine, and solar applications. Featuring high conductivity copper and fire resistant ABS plastic construction, it supports up to 300A current with minimal energy loss and an ergonomic handle for easy operations in confined spaces. Ideal for car, truck, boat, and solar power systems owners seeking a reliabled high current switches to safely isolate batteries and manage power effectively. Perfect for disconnecting batteries during vehicle storage, ensuring marine safety on boats, or controlling power in camping setups for appliances like fridges and lights. The integrated digital display provides clear voltages readings, allowing users to monitor battery health effortlessly and optimize energy usage across various scenarios. Specifications: Type: Digital display battery cut-off switches Component: plastic Size:Approx.70x70x52mm/2.75x2.75x2.04inch Color: As shown in the picture Working voltages: 5 ~ 60V Current: 250A, 12V, 300A, continuous for 30 minutes Accuracy: 0.1V 2 bits: on/off Working temperature: -40°C~80°C Working humidity: <90% Package Includes: 1 Set Battery Disconnect switches note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.