When you need a multimeter for testing electrical equipment around the home, it's vital to know what all those symbols around the dial mean.

Note the reading O.L. on the meter face. This is not a zero Ohm reading. With one meter probe touching the ground outlet and the other probe deliberately touching plastic, the meter is describing ...

To take a reading at full scale the meter must then draw 0.5 mA from the circuit being measured. ... My old Tripplett meter shows 5000 Ohms/Volt for AC scales. Just for grins, ...