owner’s manual for use with models 10, 20, 30 39
Device Information
EN
Specications
Water
resistance
Rugged plastic,
waterproof to IEC
60529 IPX7
Battery type 2 AA batteries,
(alkaline, NiMH, lithium,
or precharged NiMH)
Battery Life Up to 25 hours
Operating
temperature
range
From -4°F to 158°F
(-20°C to 70°C)
About the Batteries
WARNING
The temperature rating for the
device (page 39) may exceed the
usable range of some batteries.
Alkaline batteries can rupture at
high temperatures.
Do not use a sharp object to
remove batteries.
CAUTION
Contact your local waste disposal
department to properly recycle the
batteries.
NOTICE
Alkaline batteries lose a signicant
amount of their capacity as
temperature decreases. Therefore,
use lithium batteries when
operating the device in below-
freezing conditions.
Maximizing Battery Life
You can do various things to
increase the battery life.
• Leave the backlight off when not
needed.
• Lower the backlight brightness
(page 38).
• Decrease the backlight timeout
(page 38).
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