[Kidkraz]

I bought the progressive for my TM, and its helped me a few times. At one campground, I had a small heater in my rig running when my power went out. Turned out that power was dropping to 106 and lower voltage, which showed on the Progressive unit. After seeing that, I stopped running the plugin heater, and reverted to my Mr Heater buddy as needed. As my friend says, its cheaper up front, than at the repairs station. Or in the worst case, after the fireman puts out the flames.