Featuring...
What's missing from your service truck?
Put Express Mobile's radio remote control testing to work for you and in two minutes you can easily check the air brake system, test lighting and visually check brake adjustment!
TRAILER LIGHT
& BRAKE TESTERS
Welcome and thanks for visiting our website.
For more than 20 years Square Wheel Industries has supplied trailer light and brake testing equipment to the trucking and RV industries. Our equipment can be found in any size operation, from the assembly plants of some of our nation's largest trailer manufacturers to a person running a mobile service truck out of his home.
Square Wheel Industries equipment is selected because everybody wants the same thing: equipment that is sturdy, straightforward and functional.
Not familiar with our Testers? Be sure to check our FAQs, where we answer frequently asked questions; or click Documents, to go directly to our document library.