SOLUTION

• 3 -1/2 digits of digital multimeter refer to the number of digits shown on the display of a digital multimeter.
• A 3 1/2 digits digital multimeter has three full digits that can change from 0 to 9 and the one-half digit that can change to either 0 or 1.
• That means 3 1/2 digits digital multimeter can show values from 0 to 1,999 (Max) or 0 to -1,999(min).

For example, a 6 -1/2 digit display has a 7-digit readout, but the most significant digit can read 0 or 1 while the other 6 digits can take any value from 0 to 9. Hence, the range of counts is ±1,999,999.