If you are new to using analog radiation detection instruments, this how-to guide will teach you how to read the meter properly.
This video covers the three main types of meter faces used with instruments that have a multiplier selector switch, demonstrated with the Ludlum Model 3. A final example shows how to read an instrument with a range selector switch, demonstrated with the Ludlum Model 19.
Watch the video below, or read the corresponding technical article: How To Read an Analog Meter Dial.