BETTER SECURITY - The wireless disconnect switch enables you to cut off the power supply of the car battery by remote control, which helps to prevent the battery from running out and protect the circuit. The car battery disconnect switch can disconnect the power supply of the car, and the thief cannot start and steal your car.WIDELY APPLICATION - Suitable for any displacement of cars, motorcycles, travel trailers, campers, trucks, boats and other engine applications with 12 V batteries. Just press the remote control button to disconnect the car power system, which is convenient to use and improves safety.EASY INSTALLATION - Step 1: Remove the negative electrode of the battery. Step 2: Connect relay pin 30 to the negative terminal of the battery. Step 3: Remove the original battery bus to the switch's 87 pin. Step 4: The two thin wires on the switch are connected to the positive and negative terminals of the battery. Red wire ( positive), black wire (negative)MORE CONVENIENT - the wireless remote control battery disconnect switch allows you to disconnect the car power system by pressing the remote control button without opening the engine hood each time you turn on the power, saving you a lot of time and trouble.NEW UPGRADE - This battery remote control switch is the latest upgrade. Compared to other products, installation is simpler. Please read the manual carefully before installation. If you have any problems, we will try our best to solve them for you. Product Description Track Page Views WithAuctiva's Counter