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 2925-00-555-0584
NSN 6685-00-590-8271
NSN 5950-01-161-0855
NSN 5990-01-279-8654
NSN 5998-00-919-8544
NSN 6130-01-381-2238
NSN 5975-01-439-8490
NSN 6610-01-241-3334
NSN 5925-01-259-3603
NSN 2925-00-078-0525
NSN 5895-01-451-3458
NSN 6150-00-434-1913