An item specifically designed to test and/or monitor an electrical circuit and indicate its operating condition by means of a display, such as lamps or light emitting diodes. Examples of conditions being indicated are power on, no power, reversed polarity, open ground, open neutral, alternating current and/or direct current. It may or may not be used to indicate definite power line voltage ratings, such as 110, 220 and 440 volts. It is designed to be inserted in the circuit being tested. For items designed to indicate with out physical contact with the object being tested, see indicator, electrical potential. See also light, test, and voltmeter.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 6110-00-110-2581
NSN 5835-01-200-7153
NSN 5905-00-421-9751
NSN 6620-01-097-1038
NSN 5920-01-177-9200
NSN 5925-00-126-1489
NSN 6130-01-441-9072
NSN 6105-01-145-5405
NSN 6610-01-022-0076
NSN 6220-01-120-7779
NSN 6105-01-384-3687
NSN 6320-01-547-9877