I was looking to see if at home hit guages existed. At the right price an absolutely brilliant idea in my opinion.

Apparently, it is not that easy to execute. All I could find was this bad boy, the Herman Wavemaster and digital trainer combo:

The Herman Digital Trainer with Power Sensor is designed specifically for martial artists and provides objective measurements of power, speed and technique through digital feedback.

The HDT measures and records the impact of a preselected number of hits, or number of strikes over a specific time interval, and calculates the maximum power, the average power and the total score for each technique.

It reminds me of a Bop Bag. Anybody seen/ used anything like this (not the wave bag the digital guage)?
I think it would be a huge hit at fraternity houses across the US.