Item # ATH-30-B, Alternator or Magnetic Pick Up 12or24v w/ Hour Meter Tachometer On Bailey Motor Equipment Co.

The ATH-30 is a rugged, transistorized magnetic sensor or alternator analog tachometer/hourmeter with solid-state circuitry for indication of engine RPM. It is equipped with a bracket for mounting into a standard 3-3/8" (86 mm) dash mounting hole, and has a bright 304 stainless steel bezel. This model is powered by a 11-28 VDC battery and is reverse polarity protected. The hourmeter ranges from 0 to 99,999.9 hours in 0.1 increments.
A full 270° sweep of the pointer gives an accurate indication on a large easy-to-read scale, ranging from 0 to 3000 rpm. The dial can be illuminated for night reading using through dial lighting.