The advantages of speed differential fall arrester are fast response time and short braking distance. The fall arrester has a rapid response function. The sensing time of the wire rope and the internal locking system of the fall arrester is only 2 seconds later than the time of the fall accident, which means that the falling distance of the wearer is less than 2 meters. Although the fall from high altitude occurs only in a moment, the locking function can also be started in a moment, with a very high safety factor.

The disadvantage of the speed difference fall arrester is that when the human body falls out of control, the wire rope of the fall arrester will hang the human body in the air, and the load can be relieved only after waiting for rescue or finding a reliable and solid foothold by oneself, which is not conducive to the faster recovery of the staff to the working state.