Imperial
Read the first four numbers from left to right, including any 0s at the beginning. Do not read the red number(s) or any numbers following the red number(s). When the meter reaches 9,999 the meter will start recording from 0 again.
So the reading on the dial above is 1234.
Metric
Read the first five numbers from left to right, including any 0s at the beginning. Do not read any of the numbers after a decimal point or space. When the meter reaches 99,999 the meter will start recording from 0 again.
So the reading on the dial above is 32764.