Datasheet

Button Operation Performed
HOLD
Hz
ZERO
Press ZERO to display the present value as stored value and
display zero. After that, all the measurement result displayed
will automatically subtract the stored value.
Press ZERO again to display the stored value.
Press and hold ZERO to exit and back to normal operation.
Turn the rotary switch or press SELECT button can also exit
Hold mode.
Press HOLD button for 2 seconds when turning on the Meter to
display full icon.
When the Meter is at V , A and A
, press the button to
measure frequency. But the frequency readings obtained from
these ranges are only for reference,
Model UT209: OPERATING MANUAL
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