This is a Button for Cartek systems to be used with a fire extinguisher and paired with a kill switch. The bright red button is clearly and easily visible from inside and outside the vehicle and is activated with a single press. Because of this easy to activate feature, the button is recessed into a plastic housing to avoid accidental/unwanted presses. The button has 4 leads, two for an extinguishing system and two to connect to a battery disconnect. This is the Red button with no extra components.