Windtalker   (introduced 1984)
    The Windtalker IV monitors the wind direction, speed, and temperature, and answers phone inquiries from users. The Windtalker phone report is given in an attractive female voice. Callers can receive additional information by hitting touch tones on their phone dial. The sysop (system operator) can access remote control features by touch tone after entering the sysop access code.
    This model is no longer in production, but we support our existing customers with downloadable user manual, our shop repair service, and access to personal help via email or phone.

Perfect Estimator Program   (introduced 1983)
    This is Electrical Contractor job bidding software.that has been written in three languages and has won $millions in jobs over the last 20 years. It is a stable DOS program that also has been running satisfactorily in a DOS window in win95, and most installations of win98, but fails to run at all in win2k or XP. This program is no longer distributed in its present form, since it needs to be re-written to be compatible with today's operating systems. A re-write is underway, and PE will soon be downloadable at this site.

Variometer   (introduced 1977)
    A hang gliding flight instrument that indicates the vertical speed of the flight (rate of climb). It is not necessarily an information displaying instrument, but rather a device that is used actively to gain altitude. So, it was designed to be many times faster acting than the mechanical versions used in airplanes.
    This product has not been produced by us for many years, however, we still offer support in the form of repair service.