A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 6685-01-344-6639
NSN 6320-01-276-4739
NSN 6620-01-527-9798
NSN 6135-01-512-8105
NSN 6130-01-056-2097
NSN 7035-01-092-5723
NSN 5945-00-203-4514
NSN 5895-01-020-7771
NSN 6320-01-018-7073
NSN 6240-01-585-9783
NSN 5915-00-222-6031
NSN 5985-01-517-8751