A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 5950-01-535-0980
NSN 4140-00-219-3146
NSN 6650-01-446-8752
NSN 6135-00-269-5843
NSN 6145-01-646-1232
NSN 5998-00-052-5500
NSN 5835-00-289-9080
NSN 5990-00-554-0366
NSN 5996-01-399-6677
NSN 6685-01-202-1581
NSN 5960-01-197-4461
NSN 5960-01-100-0089