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All over the world
Photo Electric Cell
The instrument can help us to teach make & break circuit by using Photo cell Selenium cell in the presence of light. *Built in Power Supply. *Selenium Photo Cell with shield.
*Potentiometer for sensitivity. *Jewel Lights Indicator for showing make & break circuit.
*Three 4 mm terminals for running 6 V AC bell.* Complete with Manual and Connecting Wire
Photo Cell