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 5950-00-413-8125
NSN 5905-01-410-2933
NSN 4140-01-418-5519
NSN 6610-00-827-8959
NSN 5965-01-169-9163
NSN 7035-01-083-0282
NSN 6685-01-323-2136
NSN 5835-01-412-6901
NSN 5925-01-180-0082
NSN 5920-01-040-7718
NSN 6110-01-097-6805
NSN 5998-01-534-7185