Faria Beede Instruments 30603470 is a reliable and accurate tachometer designed to provide precise engine speed readings for various applications, including 4-cycle engines, outboard engines, and diesel engines. Here's a brief overview of its capabilities:

• Compatibility: This tachometer is suitable for use with 4-cycle engines, where the tach signal terminal is connected to the ignition coil or a transistorized tach driver circuit.

• Outboard Engine Support: It can also be used with outboard engines, where the tach signal terminal is typically connected to the unrectified AC output of the alternator/lighting coil or directly to the stator output wire.