Save space on your dash and provide a clean look with AutoMeter's Electronic Tach/Speedo Combo. Taking the highly precise circuits from the individual speedometer and tach and combining them into one unit gives you the accuracy and the response time you need and the convenience of a one piece solution. Compatible with nearly any factory speed sender and 1-12 cylinder applications, this unit is simple to calibrate and designed with the type of durability you expect in an AutoMeter gauge. AutoMeter's GPS Speed Sender is also compatible for an easy, plug and play solution.Features: Traditional incandescent lighting illuminates around the perimeter of the dial Gauge kit includes bulb and socket assembly, red and green bulb covers, mounting hardware, and installation instructions Speedometer is compatible with most two wire sine wave and three wire hall effect vehicle speed sensors. Speedometer can be easily calibrated using the trip reset button on the from of the unit and a premeasured two mile distance. No dip switches! Tachometer is compatible with 0.5 - 6 pulse ignition signals (1-12 cylinder engines) with points, electronic, and most 12V high-performance racing ignitions. Reprogram at any time to accommodate changes in gear ratio or wheel and tire combination with a simple push button, 2 mile drive calibration. Product Description: 3-3/8" Tachometer/Speedometer Combo, 8K RPM/120 MPH, Designer BlackPit Stop USA offers Auto Meter Designer Black Tachometer / Speedometer Combo - 3-3/8 in. 1481 at low everyday prices. Be sure to check out all our products from Auto Meter including Auto Meter Speedometer / Tachometer Combos and Auto Meter Tachometer / Speedometer Combos.