AutoMeter 6798-PH Gauge, Tachometer, 3 3/8', 16K RPM, in-Dash, Phantom Elite Digital. Buy AutoMeter 6798-PH Gauge, Tachometer, 3 3/8", 16K RPM, in-Dash, Phantom Elite Digital: Specialty - ✓ FREE DELIVERY possible on eligible purchases. AutoMeter Products provides products and services that accelerate innovation in the performance instrumentation market. . As a leader in instrumentation technology, data acquisition systems, and battery system testers and chargers, AutoMeter is committed to advanced product development and superior quality. . ISO/TS certification ensures that AutoMeter customers are only the highest quality products. These technology-leading products help give AutoMeter customers a competitive edge, wherever they are used. . AutoMeter is the only ISO/TS certified manufacturer of the micro air core that drives gauges anywhere in the US. This allows us to be a first tier supplier to the major automakers and many other high tech OEM customers. . During our 60+ years, we have developed many industry-leading products from our rev control tachometers and quick responding tachometers, to our high technology LCD Competition data acquisition systems. .