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 6220-01-412-1799
NSN 6650-00-067-3572
NSN 5835-00-705-7645
NSN 6220-01-495-6024
NSN 5985-01-561-0411
NSN 6105-01-423-3497
NSN 7035-01-433-3547
NSN 5835-01-477-0137
NSN 6645-01-416-2016
NSN 5935-00-202-5808
NSN 6240-01-288-0555
NSN 5975-01-077-0509