Classic Instruments Speed Signal Interface Modules

Better performance requires better communication. Classic Instruments speed signal interface modules will efficiently convert pulse signals to make sure your instruments and your transmission clearly understand each other. As a speedometer interface: Input source options: * Built-in Vehicle Speed Sensor (VSS) input source * Three-wire pulse signal generator input source * Two-wire pulse signal generator input source * One-wire ECM signals input source Output: * 8,000 pulse per mile or 16,000 pulse per mile * 8,000 ppm cruise output Additional benefits: * Three different calibration options * Input signal can range from 2,000-200,000 pulses per mile * State-of-the-art signal averaging software that ensures smooth pointer operation, even in fluctuating signal conditions * Noise-reducing, filtered power output for powered speedometer signal generators As a tachometer interface Input source options: * High-voltage coil signal input source (typically the negative side of an ignition coil) 0.5-6.0 pulses per revolution (1-12 cylinder engine) * 5-12 V square wave signal input source from aftermarket ignition box or ECM * Inductive gear tooth sensor input source, 32-510 tooth range Output: * Signal output 12 V square wave, 50 percent duty cycle * 2, 3, or 4 pulses per revolution (4, 6, or 8 cylinder) * 3 preset flywheel tooth settings Show Less