A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 6320-01-123-6814
NSN 5975-00-815-2160
NSN 6110-00-216-6911
NSN 5895-01-428-3317
NSN 5960-01-364-1318
NSN 6220-01-413-2248
NSN 5975-01-081-6836
NSN 6645-01-394-5149
NSN 6105-01-162-5932
NSN 7035-00-286-6221
NSN 6620-00-280-2874
NSN 5975-00-583-8625