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 6220-01-204-7082
NSN 5895-01-277-6904
NSN 6610-00-524-0724
NSN 2925-01-079-6229
NSN 5835-00-912-5656
NSN 5915-01-028-0899
NSN 5990-01-443-2931
NSN 5855-01-646-8126
NSN 4140-01-070-0137
NSN 2925-01-655-4455
NSN 4140-01-495-6979
NSN 5895-01-338-2250