Our factories have become much bigger and organized than the small workshops they were once. In the olden days the factories were small, unorganized, had limited output and resembled workshops with a bigger workforce. There were too many discrepancies as compared to today. The safety features were not as good as provided to the workers today. A lot of people at that time were harmed during their work and many people suffered severe injuries which left them paralyzed due to the injuries.

A factory no matter how big or small is, or if it is a modern one or one of the past always stored a good amount of supplies to make their goods. In the past storing liquids was the most difficult task. There were no storage tanks as are available now and the best they could do was build a huge drum where they would pour hundreds of gallons of the liquid. A steel chain was their liquid level indicator which was dipped inside the drum by a person and then pulled out. The length of the chain that got wet determined the staff about the amount of liquid available in the drum.

Most of the factories didn’t pay much attention to the safety of workers and a worker would carry the heavy chain on his shoulder on to the top of the drum. From there he would drop the chain inside while holding one end. In a lot of cases the person doing this job would fall down in the drum while throwing the chain inside. In case the liquid inside was acidic, the damage to his body would be irreversible and he would either be dead or as good as dead.

Today the rules and working styles of the factories have totally taken a new form. There are many tools available to provide safety to the people working in the factories and handling dangerous jobs. The ultrasonic level indicator is one of the safety and measuring devices used in the factories today. No matter what type of drum or tank you are measuring the ultrasonic device can measure it from outside the walls. This means that no worker has to climb all the way to the top and expose himself to the huge quantity of liquids. Measuring the liquids inside the tank from the outside provides safety and the opportunity to remain safe even when measuring to most dangerous liquids.