The switch can be connected with four or three wires;occupies a small area and is easy to carry and use;Magnetic back,can be placed by adsorption;ABS material protective shell,dust-proof and weatherproof,suitable for long-term use. Is suitable for Lift Gate, Truck Tipper, Forklift Truck, Tire-removal Machine, Car Tail, Trailer Hoist, Electric Basketball Rack, Elevator Lifter, Boarding Bridge, Stackers Truck, Sanitation Car, etc.