One problem with an emergency generator back feeding the electrical panel is knowing when power returns. With my main disconnect open I have no easy means to determine presence of incoming power. I purchased a no contact voltage tester but without removing the inner panel cover I can't get close enough to the incoming cables for the testor to work. My feed is underground and comes up to the meter via conduit but a couple of nights ago I got the idea that the meter might have a stay field around it that could be detected. Since it was both dark and cold I made a mental note to check out my idea at a more appropriate time. I tried it today and it works great just touching the probe to the meter glass.