Up for sale is a vintage Mac Tools ET 925 Engine Analyzer, Made in USA. This diagnostic unit tests tachometer/RPM, dwell angle, voltage, amperage, and resistance (ohms). It comes housed in its original molded black hard plastic carrying case along with the original printed instruction manual and attached wire lead sets/clamps as pictured. The casing, latches, dial face, and lead cables show minor cosmetic wear from age and shop use, but everything remains structurally intact. The manual is folded and has some wear. Please review all detailed photos for exact physical condition. Comes as seen in photos.