International Electrical Symbols
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and accident.
The Meter is suitable for indoor use.
When under battery operated situation, turn the
Meter off when it is not in use and take out the
battery when not using for a long time.
When under battery operated situation, constantly
check the battery as it may leak when it has been
using for some time, replace the battery as soon
as leaking appears. A leaking battery will damage
the Meter.
Under the influence of Radiated Radio-Frequency
Electromagnetic Field & Conducted Radio-
Frequency Electromagnetic Field phenomenon,
the captioned model have a magnificent error in
temperature measurement, it will be back to
normal when the interference is removed.
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Model DM-442B: OPERATING MANUAL
www.calcert.com
1.800.544.2843
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