The Stack ST400 range of tachometers offers the unique STACK stepper motor movement with a peak RPM recall, 25 minutes of data recording which plays back on the gauge, & the facility to run an external shift light.
The Stack ST400 can be configured to work on most negative earth ignitions as well as magneto ignition systems by using the supplied switch kit.
A peak RPM recall function comes as standard with all Stack ST400 tachometers as does a built in, user configurable, shift-light driver circuit for use with an external shift light (which must be purchased seperately).
The Stack ST400 range require a 80mm cut out for mounting (with a 65mm rear clearance) making them directly interchangeable with the majority of aftermarket tachometers as well as many OE units.
The Stack ST400 range are available with black or white dial faces & in the following RPM scales:
0-8000
0-4.5-10500 (0-4.5 is compressed)