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 5930-00-065-3740
NSN 5990-01-234-0789
NSN 5950-00-999-1635
NSN 6150-00-394-8888
NSN 5999-01-570-5055
NSN 4140-00-936-3147
NSN 6620-00-770-9794
NSN 5960-01-015-8655
NSN 5996-01-026-9981
NSN 5915-01-197-5572
NSN 6135-01-386-1452
NSN 5935-01-415-0887