ignition coil questions

The "load sensing" ability of a coil is the heart of that one ignition system, the name escapes me....A guys name....

That E-SUN does capacitance and transistors too, pretty cool. Nice for troubleshooting flat screen power supply caps! Autoranging is nice. I got an old Tripplet 7 analog, nabbed it from my old telephone van before it got auctioned off and an newer LG digital.