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The very first on-board scale made for your F-Series work trucks! From service trucks to utility trucks and more, an Air-Weigh on-board scale ensures that your trucks are within their legal operating weight all day, every day.


Getting ready to head out for the day? With the industry’s first on-board scale for work trucks, you can be sure each of your axle groups and GVW are legal before you hit the road. Add our optional Bluetooth display and drivers can email their weights from the pick-up site.

Currently available for F-Series trucks, the Air-Weigh Work Truck Scale will help your drivers load safely and efficiently, getting them out to the job site faster while eliminating overweight fines!

Need a hand?

Here’s everything you need to know about your LoadMaxx scale:

Troubleshooting help
We recommend you contact our customer support team at 888-459-3247 anytime you need help with your scale.
How do I use my scale?
In order to get an accurate weight with your onboard scale, park your vehicle on level ground with the engine running and the brakes released. Briefly deflate the air suspension and inflate to ride height. Steer and drive weights are displayed on the easy-to-read digital display.
Technical specs
  • Weights Displayed: Steer, Drive, GVW, and Payload
  • On-the-Ground Weights
  • Calibration: Dual-Point, Pin Protectable
  • Temperature and Altitude Compensation
  • Alarm Outputs: Two, both with warning and overweight thresholds; Pin Protectable
  • Operating Temperatures: 0 deg to +50 deg C; 32 deg to + 122 deg F
  • Printer Option (RS-232)
  • J1708 Interface
  • J1939/CAN Interface
  • Inclinometer Option
  • Units: Pounds or Kilograms; user selectable
  • Power: 9 to 32 V dc
How it works

LoadMaxx works on tractors with air drive suspensions and most trucks with leaf spring steer axles and air suspension drive axles. Air sensors measure pressure in the air bags, and deflection sensors measure flex for axles with leaf spring suspensions. The scale converts the sensor measurements into accurate on-the-ground weights.

When it is properly calibrated and used, LoadMaxx is accurate to within 300 lbs on each axle group.

Want More Information?

We are open from 7am-5pm PST to answer any of your questions on onboard scales. Just call us at 1-888-459-3444. Have a question outside of those hours, send us a message and we’ll get back to you as soon as possible!