A tachometer that consists of indicator(s), generating transmitter(s), and the necessary connections.
NSN 5950-01-292-9979
NSN 5930-01-576-9816
NSN 5910-00-233-6805
NSN 5960-00-893-2187
NSN 6645-00-155-2398
NSN 5990-01-184-2550
NSN 6650-00-078-5773
NSN 5920-00-455-9743
NSN 4140-01-659-9371
NSN 6110-01-337-0223
NSN 5855-01-597-1836
NSN 5990-00-404-2451