LED Tester AA0274

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With this basic but essential tool it is possible to check the function, brightness, colour and polarity of most kinds of light emitting diodes (LED). The LED to be tested plugs in to the front panel, at the current you wish to test it with. Two 10 mA positions have been included on this multi-LED tester so that comparisons between two LEDs can be made simultaneously.Features: • 9V battery required• Test currents: 1mA, 2.5mA, 5mA, 10mA, 20mA, 50mA Show more