What is the maximum number of toads you can get in Super Mario Run?

From Wikipedia...

Megohmmeter (sometimes referred to as a megger) is a special type of ohmmeter used to measure the electrical resistance of insulators. Insulating components, for example cable jackets, must be tested for their insulation strength at the time of commissioning and as part of maintenance of high voltage electrical equipment and installations. For this purpose megohmmeters, which can provide high DC voltages (typically in ranges from 500 V to 2 kV) at specified current capacity, are used. Acceptable insulator resistance values are typically 1 to 10 megohms, depending on the standards referenced.

Meggers will measure into the GΩ and TΩ ranges.

Don't try using one on your logic circuit though...

An ordinary multimeter uses low voltage to measure the resistance. A megger has a high voltage power supply for measuring, indeed the measured resistance is different compared to multimeter, when you test the broken insulation. The multimeter will show infinity, but as soon you use a megger with specified test voltage you find out that the resistance is very low - insulation breakdown.