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 6220-01-378-1106
NSN 6685-01-070-2590
NSN 5960-01-003-8480
NSN 6620-01-633-8443
NSN 5990-00-907-9230
NSN 5960-01-386-5770
NSN 5925-00-321-8040
NSN 6320-00-925-0558
NSN 6220-01-475-1211
NSN 2925-01-519-3221
NSN 6135-01-369-8146
NSN 5996-00-432-8578