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 5999-00-683-6660
NSN 6220-01-129-2354
NSN 5990-01-027-8260
NSN 6620-01-197-3975
NSN 6645-00-819-5045
NSN 7035-01-626-4836
NSN 4140-01-495-2216
NSN 5996-01-295-2004
NSN 6145-00-076-9324
NSN 5930-01-347-5836
NSN 6130-01-555-3485
NSN 5990-01-485-0260