Desert Highway Signs is located in Phoenix, Arizona. DHS Managers will continue to provide customers with industry leading customer support under the name of Interwest Safety Supply.Read the Press Release
Increase the visibility of traffic signs with attached or embedded LED lights!Learn More
The NC-350 Traffic Analyzer is the most portable, advanced and easiest to use traffic analyzer on the market allowing you to program and deploy advanced traffic studies in just seconds!Learn More
This is the radar sign that fits your budget. This compact radar speed sign offers exceptional visibility and power efficiency in a lightweight, portable solution.Shop for Radar Speed Signs
Keeping kids safe is everyone's priority. Interwest offers a host of products to keep our school zones and cross-walks saferLearn More
Attractive, easy to handle and store. Water-filled billboard barricades feature a 28.5" X 36" sign space for branding, ads or directional instructions.Learn More
We operate in 5 regional warehouses to provide you a fast and reliable delivery service
From highway signing and safety products to crash cushions and traffic monitoring equipment.
If you need assistance, a member of our friendly staff will be always happy to help you.