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Empowering the Future of Science Education

The United Scientific® Single Pole Single Throw (SPST) Knife Switch is designed for classroom physics experiments and basic electrical circuit demonstrations. With a durable ABS base, brass connections, and nylon knobs, this SPST knife switch provides a reliable way to open or close low-voltage circuits under 3.6V. Ideal for teaching fundamental electricity concepts, this switch uses screw post connections for quick and secure wire attachment. Perfect for labs, science classrooms, and student STEM projects.