Mastech MS8250D - Buttons;Input jack description; LCD display

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2.2 2 Buttons/Input jack description
HOLD: keep current reading on the display
FUNC: switch between functions or AC/DC measurement
RANGE: switch between auto/manual ranges
REL: display relative measurement
MAX/MIN: switch between max/min measurement display
:turn on/off backlight
OFF:Power off position
:input jack for voltage, resistance, capacitance,
diode, continuity, frequency and duty cycle
measurement
:common terminal
: input jack for current measurement (<660mA)
:input jack for current measurement (<10A)
COM
μAmA
10A
V
Hz%
2.3 LCD display
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