Our digital air suspension scales have a feature that we call Estimated Steer. Estimated Steer is a readout of your steer axle weight without using a sensor on the steer axle. The way this works is the user inputs calibration data for the steer axle both empty and loaded. The scale associates the entered weights to the air pressure measured from the drive axle group at the time of calibration. Based on the data you input and the measurement from the drive axle group, the scale can calculate your steer axle weight. This feature is the best option for tractors with a fixed fifth wheel and is often more accurate than measuring the weight change with an air or strain sensor. This feature will not reliably work for straight trucks or anyone who slides their fifth wheel regularly.