The 7-319 Single Contact Key is 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 3" x 4-1/2" black acrylic base, with two binding posts. The key is made of plated metal with contacts and insulated button which is pressed to close the circuit momentarily. (3"x 4-1/2" x 3")
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