Control Ability designs and manufactures marine and heavy-duty industrial tachometers that are push button operated with speed measurements from 1 to 100,000 rpm. The company also manufactures hand held and portable tachometers that are suitable for use with reversible machinery.

Electro-Sensors manufactures five models of tachometers for industrial machinery including: two full logic, control process ratemeters; a hand-held digital tachometer; an analog tachometer; and a digital tachometer.

Maxigard manufactures three models of digital and analog tachometers intended for all speed ranges including RPM, FPM and GPM. The company also manufactures a handheld tachometer that features a contact or non-contact tip.