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 5915-00-209-0423
NSN 5930-01-108-9216
NSN 5855-01-502-7488
NSN 6685-00-920-8281
NSN 6145-01-088-9627
NSN 5935-01-485-3599
NSN 5996-01-067-8716
NSN 5855-00-198-3197
NSN 5905-00-925-2851
NSN 5920-01-375-9629
NSN 5915-00-099-0347
NSN 5990-01-133-0351