The MPG5 is designed for the Beck Protocol. It kills or disables microbes in areas the Blood Cleanser will not reach. It has other effects but they are secondary. Its output is a strong DC induced Pulse every 5 seconds, magnetic output through a coil. It kills by inducing a microcurrent through the pathogen.
The EM Probe is primarily used for pain and the treatment of injuries. Their doesn't seem to be much information on what type of output it gives off. They say a pulsed electromagnetic field with infrared and heat.
I would say they are 2 different devices for totally different applications.