[Glen]’s investigation revealed a 3-phase synchronous motor inside the tach. The motor drives a permanent magnet, which spins inside a copper cup attached to the needle on the tach’s face.

We install an Equus Tachometer into a project 1989 Chevy S10, ... The install only took me about an hour with some very simple tools. A drill motor, a step drill, a file, a set of crimpers, ...

The UDM60 is a tachometer that measures and processes two independent pulse signals and features a dual 6-digit, backlit LCD display and dual analog indicator. It processes complex logic and math ...

ServoTek Products Inc. announced the successful application of its TachSyn Series brushless DC tachometer/commutator within industrial motor speed monitoring applications.