This year at Iowa Gas , I bought a system from K.W. Firth that you might be wanting!! Turn on handle,computer resets and power goes to small geared motor that turns computer wheels... Get in touch with Kevin.He can give you better details. Installed mine and works great. Mine is driving a Model 36 Veeder-Root computer and rings a bell at the 9/10ths of sale. Looks and sounds like you are pumping gas.