Sensors are the major sources to sense the physical quantity which either measured or used in various applications. Today we have a serious problem that trucks exceeding the legal mass limits increase the risk of traffic accidents and damage to the infrastructure. They also result in unfair competition between transport modes and companies. It is therefore important to ensure truck compliance to weight regulation. New technologies are being developed for more efficient overload screening and enforcement. Weigh-in-Motion is the new technology in which we use sensors & controllers which allow trucks to be weighed in the traffic flow, without any disruption to operations. Much progress has been made recently to improve and implement intelligent overloading detection system which can contribute to safer and more efficient operation of trucks. This technology not only detects the overloading but also controls the engine ignition according to loads on truck & sends this information to nearest Check Post.