The AT Series tachometer is a rugged instrument with solid-state circuitry for indication of engine RPM.
It is equipped with a ring nut for mounting into a standard 3-3/8 in. (86 mm) dash mounting hole. A full 240° sweep of the pointer gives an accurate indication on a large easy–to–read scale, and the dial can be illuminated for night reading. The ATH Series model is also equipped with hourmeter to record the elapsed running time of an engine.
 WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information about California Propsition 65, go to www.P65Warnings.ca.gov or visit our California Proposition 65 page.
 WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information about California Propsition 65, go to www.P65Warnings.ca.gov or visit our California Proposition 65 page.Additional product documentation can be found on our product support website or by clicking the Help Center button above.
| Part Number | Model/Description | Notes | 
|---|---|---|
| 20700245 | AT-30 Tachometer | Bright Stainless Steel Bezel | 
| 20700246 | AT-30-A Tachometer | Black Stainless Steel Bezel | 
| 20700247 | AT-30-B Tachometer | SAE Bright Stainless Steel Bezel | 
| 20700248 | AT-30-C Tachometer | SAE Black Stainless Steel Bezel | 
| 20700249 | ATH-30 Tach/Hourmeter | Bright Stainless Steel Bezel with Hourmeter | 
| 20700250 | ATH-30-A Tach/Hourmeter | Black Stainless Steel Bezel with Hourmeter | 
| 20700251 | ATH-30-B Tach/Hourmeter | SAE Bright Stainless Steel Bezel with Hourmeter | 
| 20700252 | ATH-30-C Tach/Hourmeter | SAE Black Stainless Steel Bezel with Hourmeter | 
| 20700254 | ATH-40-A Tach/Hourmeter | 4000 RPM Black Stainless Steel Bezel with Hourmeter |