Features 1. Keep all cables safe and tidy: The battery terminal connector has 0/4/8 AWG specification input, which can connect multiple cables of different sizes to the same terminal and then connect to the car battery. Safer and more aesthetically pleasing, perfectly fitting the battery terminals. 2. Real time monitoring of battery voltage: Equipped with a 12-24V voltmeter with an error of less than 0.5V, it can accurately detect the real-time battery voltage of the car and easily understand the battery usage situation. 3. Effectively extend battery life: Made of high-quality aluminum alloy material and equipped with pure copper fastening rings, it is sturdy, durable, and has better conductivity, which can protect car battery terminals from corrosion and prolong battery life. 4. Better protection: Using a transparent acrylic cover can effectively prevent dust and damage from the surrounding environment, better protecting wires and battery terminals. 5. Strong universality: Adopting the standard international automotive battery 17.5mm universal caliber, suitable for most automotive batteries. Specification Equipped with display battery head: 1x 0GA+1x 4GA+2x8GA Product Material: Zinc Alloy Real time monitoring of battery voltage: range 12-24V Error range: 0.5Ve Color: Silver Size: 7 x 5 x 2.2 cm Weight: 430 g Package Include: 1x positive battery terminal connector 1x negative battery terminal connector 2x transparent acrylic covers 2x copper fastening rings