MAX/MIN muaj nuj nqi ntawm Noise Level tester
1. Press the REC button once to put the meter in MAX/MIN mode. The meter will now display the highest reading that occurs while the function is enabled. The "MAX" icon will appear in the display.
2. Press the REC button again to display the lowest reading that occurs while the function is enabled. The "MIN" icon will appear in the display.
3. Nias REC dua los hloov ntawm MAX thiab MIN nyeem.
4. To exit the MAX/MIN mode and return to the normal real time display, press and hold the REC button (2 seconds) until the MAX and MIN icons disappear.
