12V Car Switch Relay 200A Universal Battery Integrated Wireless Remote Control Disconnect Isolator Main Switch Auto Accessories Pay attention !!! Pay attention !!! Pay attention !!! The relay should be installed on the negative pole. Don't make a mistake, otherwise the circuit board of the relay will be burned out. This Is a More Convenient Car Battery Disconnect Switch System That Can Remotely Master Kill Your Car Power System,A Proper Maintenance Will Extend And Protect The Battery And Engine Life. Remote Operation,Comparing To Tranditional Battery Switch, This Remote Control Wireless Battery Switch Disconnect Allows You To Move The Trigger From Under The Hood To Your Hand So That You No Need To Frequently Pick Up The Hood. Come With New Style Remote Control.You Can Even Control It In Your House,One Button Control On Your Dash For The Whole Car Power System, Remote Receiver Standby Current Is Very Low (0.005A). Universal For DC 12V Camper Trailer SUV VAN Small Truck Agricultural Vehicle Trike Auto Off Road. Integrated Design, Small Size, Avoid Cumbersome Wiring, Convenient Installation. Newly Upgraded Universal Installation Of Positive And Negative Electrodes, 230A Higher Working Current, 420A Instantaneous Current, It Is Safer And More Active. Working Voltage: 12V 1.8W Working Current: 200A Instantaneous Current: 360A Host Size: 46 * 46 * 45mm Fitment: Suitable For Any 12V Vehicle With Displacement Less Than 3.0 Simple installation in just 3 steps 1. First remove the negative bus and connect it to the empty wire post A 2. The thin red wire B is connected to the positive pole of the battery 3. The copper sheet C with holes is connected to the negative electrode Car Battery Isolator*1 Remote Control*1 Battery Clips*1 Pay attention !!! Pay attention !!! Pay attention !!! The relay should be installed on the negative pole. Don't make a mistake, otherwise the circuit board of the relay will be burned out .