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 6105-01-444-1201
NSN 5985-01-422-2551
NSN 5935-01-020-9372
NSN 6130-00-194-4820
NSN 6110-01-099-3200
NSN 6650-01-479-4467
NSN 5930-00-670-7213
NSN 5975-00-190-4421
NSN 5960-01-509-8779
NSN 5996-00-857-9810
NSN 6130-00-787-3024
NSN 5985-01-163-3069