Product description

Perfect for experiments which require momentary current, the Contact Key can be used to open or close an electrical circuit.

The key is mounted on a approx. 5cm x 11.5cm black acrylic base, with two binding posts. The key is made of plated metal with contacts and an insulated button which can be pressed to momentarily close the circuit. Let your students learn how to control the flow of an electrical current with this Contact Key Switch.