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 5910-01-631-8400
NSN 6685-01-044-8103
NSN 6105-01-442-4343
NSN 5895-01-291-5472
NSN 6240-01-578-6227
NSN 5960-00-390-5670
NSN 6645-00-967-8401
NSN 6685-00-496-9090
NSN 4140-01-642-0369
NSN 5990-00-542-3881
NSN 6135-00-269-5843
NSN 5996-01-633-7979