EN
DMM4500PV
Smart Hold
Press the Relative button to enable/disenable this function.
Press the HOLD button over 2 sec to turn on/off Backlight.
The meter will beep continuously and the display will flash if the
measured signal is larger than the display reading by 50 counts.
(However, it can not detect across the AC and DC Voltage /
Current).
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Backlight
HOLD
10