"ROADLOAD : On-board Mass (OBM)" is a specially designed product that allows driver to measure the total weight and axle weight of his vehicle in real-time at the cabin by mounting MEMS sensors on the suspension parts of the truck. On-board style which is simple to install, no need Disassembly, Welding, Drilling Real-time measurement of Total Weight and Axle Weight Provides 5% of Accuracy Error Rate