Sper Scientific 840024 Digital Radiation Meter - Manual (Page 5)

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Although housed in a high-impact
case, the Geiger-Mueller tube that
senses radiation is fragile and may
break If the unit is dropped, exposed
to high temperature (above 122°F/50°
C) and/or high humidity (over 90%
RH).
x Do not allow surface of housing to
come in direct contact with
radioactive contamination
x Do not leave meter in
temperatures above 122°F (50°C)
x Do not expose to wet or high
humidity conditions
x Do not place meter in a microwave
oven
x Do not remove back cover
x Replace battery when is
displayed
CAUTION