Easy to Use Optocoupler Tester with Clear Indicator Lights Functionality
ab 10,05 €
If the indicator light is always on or off, remove the optocoupler from the circuit board and insert it into the optocoupler seat of the breadboard to reconfirm the test results. Confirm the optocoupler PIN1 (the pin with a small dot on the test board also has a corresponding mark 1 pin).
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