Microprocessor controlled with peak rpm memory recall
Programmable shift light
RPM activated Switch (Can handle 3 amps) 
includes in-dash mounting hardware and installation instructions
3 3/8" diameter & 1 1/2 inches deep
0-9999 readout in 1, 10 or 100  RPM increments (ex. 9,900 , 9,990 , 9,999)
Works on 1-2-4-6-8-10-12 cylinder engines
Programmable red line (full bars is set at default of 6500 RPM)
Nightime dimming
Life Time Warranty

*If your vehicle has a magneto system, connect the tach signal wire to the negative side of the coil. Do not connect the tach terminal to the positive (+ or high voltage) side of the ignition coil. Many tachometers, shift lights or RPM-activated switches will not read directly from a Magneto, so your installation may need a Magneto Signal Converter to function properly.