APT Instruments provides complete automotive instrument and gauge repair, service and conversion on all type vehicles from the 1890s to current year.  Includes calibration and warranty.    Foreign or domestic, whether digital, electric, analog or mechanical.  Contact us for your instrument repair needs.

        We service speedometers, tachometers and small gauges for cars, trucks, busses, agricultural or farm vehicles, boats, exercise equipment, industrial and military equipment, tractor-trailers, recreational vehicles, snowmobiles, etc.

        We specialize in one day turnaround on most late model repairs.  We service most brands of gauges, including VDO, Stewart Warner, Smiths, Motometer, Clark Brothers, Murphy, AC Delco, King Sealy, Nippon Denso, Nippon Seiki, Veglia, French Jaeger, Faria and more.

        One year warranty on most.  Sorry, we no longer do radio repairs.    We do not work on cars - just gauges.  Nor do we sell repairs parts and repair kits.

        For your assistance, we have provided a Troubleshooting Guide and instructions for conducting Ratio Tests.

        Remember, before packing your gauges for shipping to APT, see our S&H Instructions.