531 Tachometer 0 to 3000 rpm - electrical 12 volts. (3 1/2" diameter) 3 prong mounting. This tachometer receives RPM signal from alternator, electronic control box and coil only. This electrical tachometer is designed for the most heavy duty marine, industrial and automotive applications. With black background, chrome rim and white needle you will find your engine rpm reading to be extremely clear. Each 12 volts electrical tachometer comes with a 100% money back guarantee and will ship direct to you within 24hr worldwide.
Use this tachometer with Detroit Diesel, Cummins, Caterpillar and other engines.
weight: 1.60 Lbs.