A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 6130-01-572-6237
NSN 5895-00-387-2524
NSN 5945-00-186-5069
NSN 5975-01-634-0678
NSN 2925-01-208-0711
NSN 5905-01-247-7597
NSN 6150-00-158-0066
NSN 6685-01-012-1018
NSN 5965-01-641-9316
NSN 5855-00-688-9954
NSN 5930-01-021-5594
NSN 6105-01-634-0322