Just as with any other tool in the industrial field, safety is the first thing one should think about. That is the reason why devices started being invented that can be installed on cranes, in order to give out a visual or audible alert every time the lift limit is exceeded while operating machinery. These systems can display exactly what the carried weight is, as well as the carried limit. Not only can they be integrated within cranes, they can also be standalone devices, ensuring that the operation stays within safe working limits.