Proflow's More Convenient Car Battery Disconnector Switch System that can remotely master kill your car power system to prevent the old car power drain or save the car from being stolen. No power leakage anymore. prolong your car battery life for 2-3 times Comparing to tranditional battery switch, this Remote Control Electromagnetic Battery Switch Disconnect allows you to move the trigger from under the hood to your hand so that you won't need to open the hood to turn on power every time. Just press the remote button - handy easy & simple! 12V for car, 24V for truck Item specifics : Switching Voltage : 12V Special Features:remote control battery switch master kill with remote:yes (2Pcs One for reserve) function: remote + manual control Features:electro-magnetic solonoid latching relay Why we need this device? Sometime we have to stop the engine for long times(15 days or more),Car battery run off day by day. What if it is out of battery one day? You can't start the car. This device can cut the power off , You just need to turn on the battery with your remote when you want to use the car one day. Upgraded:Silver contact, 180A main switch, new manual switch, high temperature resistance, new matte remote control Notice : 1.This device is only for battery on / off, it can't start your engine 2.Pls do not cut the power off when your engine is working 3.The remote has been paired well with the switch before shipping, you can use it directly when you get it .No need to pair them again Package Includes: 1 x Electromagnetic Car Battery Switch with wiring cable 2 x Remote Control 1 x Remote Receiver Relay with wiring cable Remote controller has been paired well with switch before shipping. Parameters: Max Current: 1000A Rated Current: 180A Rated Voltage: DC 12V Working Voltage: DC 5- 15V Lifetime of Use: 100,000 Times Remote Receiver Standby Current: 0.0085A Main Switch Size: Height:3.2", Width:3.8", Length:5.8"