In the past few years, we have covered plenty of boxing trainers that help you take your punching skills to the next level. The Innolife Boxing Dynamometer is also worth a look. It is designed to measure the amount of force in each of your punches. It has a soft punching pad that goes easy on your hands.
The device has kg, lb, and N measurement modes. It can track punch power from 22lb to 1543lbs. It has a display to give you feedback on your punches.