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 5990-01-546-1649
NSN 7035-00-922-5700
NSN 2925-00-871-4089
NSN 6645-01-243-3138
NSN 6130-01-400-0663
NSN 6150-01-353-7807
NSN 5945-00-062-8959
NSN 5910-01-133-3897
NSN 5999-01-643-7100
NSN 5999-01-265-3853
NSN 6610-01-482-6266
NSN 6610-01-492-9888