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 6220-00-803-4610
NSN 6620-00-621-6951
NSN 2925-00-902-3881
NSN 5910-01-495-0619
NSN 5915-00-168-6292
NSN 6240-01-437-8991
NSN 6320-01-407-8663
NSN 5920-00-495-6663
NSN 5930-00-063-2003
NSN 2925-01-381-5307
NSN 5935-01-153-2662
NSN 6145-01-479-2723