Marshall electronic speedometers are designed to work with both hall effect senders and magnetic pickup sensors. Any speed sender or electronic module that meets the following conditions can be used with our speedo:

• Pulse range generated proportional to the vehicle speed
• Signal with minimum 3V peak to peak signal - typical for 3-wire hall effect and 2 wire vehicle speed sensor outputs
• 4000-200,000 pulses per mile (16,000 is typical).

3-3/8" SCX performance in-dash speedometers and tachometers feature high-speed stepper motor movement, LED through-the-dial lighting, red illuminated pointer, and easy-install u-clamp.