Watchfire Signs (Danville, Ill.) manufactures the NACS Cool New Product of the National Association of Convenience Stores (NACS) Show: Price Watcher™ gas price signs. Price Watchers’ energy efficiency – the display uses as much electricity as a single light bulb – provides significant cost savings for gas stations and convenience stores. “Price Watcher gas price signs not only offer a convenient way to update gas prices but are designed to make convenience stores stand out with high LED densities and broad stroke characters,” said Michael Cox, Watchfire Electrical Design Manager.