Home / Gas Price Changer / VisionMax by HDD (Hamilton Digital Designs) Fuel Price Controller VisionMax by HDD (Hamilton Digital Designs) Fuel Price Controller Categories: Gas Price Changer, Gas Price Changers Brand: Hamilton Digital Designs Description Description Gas price controller used in many Gas Price signs in Canada. Related Related products GS-88899 Gas Price Changer Read more TCP/IP Module ZNE-100TI for Gas Price Changer $425.00 Add to cart GL_GMAN V3.2 Gas Price Changer LCD Add-On Module $99.00 Add to cart GS-888910 Gas Price Changer $1,000.00 Add to cart