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 5960-01-310-3863
NSN 4140-00-295-0787
NSN 5950-00-081-2206
NSN 6650-01-166-5025
NSN 5996-00-867-5839
NSN 5950-00-185-9588
NSN 7035-01-298-5154
NSN 5975-01-156-5722
NSN 5965-01-285-2133
NSN 6620-01-008-2715
NSN 6220-00-115-8564
NSN 6240-00-779-3394