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 5895-01-357-6932
NSN 4140-00-056-0708
NSN 6145-01-353-7407
NSN 5965-01-100-2591
NSN 6320-00-539-9283
NSN 6220-01-373-2778
NSN 5910-01-076-7632
NSN 6240-00-156-1607
NSN 6645-00-572-2535
NSN 5975-00-244-0706
NSN 6110-01-109-7338
NSN 6620-01-319-8178