While working in any lab for any practical especially related to electrical engineering you will be needed test equipment. test equipment is very costly and it is possible for an institution to buy them but very difficult for an individual to get that amount of money. Oscilloscope one of the pillars of such equipment is itself so expensive that it’s well beyond your reach. So it’s better to hire this equipment if you have a temporary task and want to just use it for few months. There are many companies who rent this equipment out. So just hire them and get your work in no time.